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Strike Industries AR-15 Enhanced Lower Receiver Parts Kit with Trigger, Hammer & Disconnect for .223/5.56 - SI-AR-E-LRPTH Review

Strike Industries AR-15 Enhanced Lower Receiver Parts Kit with Trigger, Hammer & Disconnect for .223/5.56 - SI-AR-E-LRPTH

Strike Industries AR-15 Enhanced Lower Receiver Parts Kit with Trigger, Hammer & Disconnect for .223/5.56 - SI-AR-E-LRPTH

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$74.95

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About Strike Industries AR-15 Enhanced Lower Receiver Parts Kit with Trigger, Hammer & Disconnect for .223/5.56 - SI-AR-E-LRPTH

The Enhanced Lower parts kit offers a convenient upgrade package for the AR-15 for those looking for a complete Strike Industries solution for new builds, or to update their plain jane AR.  This kit includes all the basics that you will need to build out your AR (minus grip), but with Strike Industries Enhanced lower parts where applicable. This complete kit includes our fire control group which offers a crisp 4.5-5.5 lb pull, with unmatched smoothness for mil-spec style AR-15 triggers.  Longitudinally ground and polished sear engagement surfaces coupled with precision cut sear angle equate a vastly improved trigger feel without sacrificing safety or reliability. Package includes: SI ENHANCED LOWER PARTS: – Enhanced Bolt Catch  – features improved grip surfaces and angles – Enhanced Magazine Catch – Enhanced Magazine Catch Button – features improved grip surface – Enhanced Pivot Pin – longer of the two large pins. – Enhanced Takedown Pin – smaller of the two large pins. – SI Selector Lever – 2 included in package – SI Selector End Plate – SI 60-90° 3-in-1 Selector Shaft – with Screws/strong> SPRINGS: – Bolt Catch Spring – easily confused with the disconnector spring disconnector spring is tapered though. – Buffer Retainer Spring – second largest coil type spring in the kit. – Disconnector Spring ““ slightly larger than bolt-catch spring identifiable because one end is a little bit wide than the other. – Hammer Spring – largest of all the springs.  – Magazine Catch Spring – this is the largest coil spring in the kit. – Pivot Detent Spring – same as the takedown detent spring so there are two in a kit. – Selector Spring – similar to the takedown and pivot detent springs, but larger diameter; there will only be one of these. – Takedown Detent Spring – same as the pivot detent spring so there are two in a kit. – Trigger Spring – the smaller of the two largest springs. PINS: – Bolt Catch Plunger ““ mushroom shaped pin – Bolt Catch Roll Pin – smaller of the two roll pins. – Hammer Pin ““ solid pin with machined grooves; can be inserted from either side. – Pivot Detent – same as takedown detent; both sides usually rounded or semi-conical. – Selector Detent – one end is flat, the other pointed/semi-conical. – Takedown Detent – same as pivot detent; both sides usually rounded. – Trigger Pin – same as hammer pin; can be inserted from either side. – Buffer Retainer  ““ large hollow barrel with small pin protruding from the top FIRE CONTROL GROUP: – Trigger: ““ Investment cast trigger, CNC machined, heat treated, phosphated, precision ground – Hammer: ““ Investment cast hammer, CNC machined, heat treated, phosphated, precision ground Features – Includes SI’s signature Enhanced Lower Parts (AR-EBC, AR-EMC, AR-EPTP, & AR-HS-60/90-3in1) – SI’s Trigger spring provide a consistent 4 1/2 to 5 1/2 lbs trigger pull with our fire control group

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Ratings and Reviews

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A little more $ now = $$$ later

William
2 years ago

Good bang for your buck. Spend $15 more now and save in the long run. Reason is with Strike's kit, you get a better hammer and a middle ground for trigger LB pull also a bigger bolt & mag release with the bonus of big hinge pins. The biggest difference in money saving is with the trigger and hammer that is where you will see the savings add up. Fitment was great, smooth, and went read more in without a hitch.

0 Comments Write a Comment

One of the best lpk's on the market

Jeremy A.
2 years ago

Great value, high quality. One of my favorite kits on the market

Great product!

Paulo O.
2 years ago

Works great fit and finish was great will buy again on my next build

So easy to order

Joe R.
2 years ago

Vary easy to ordeo

Strike Industries does it again

Steve J.
2 years ago

Whether you're building something, or you made an oopsie, this kit is well worth to have!

Strike enhanced lpk.

Jeremy R.
2 years ago

Love these kits. This will be the 3rd consecutive build I've used it for.

Worth it.

Jesse
2 years ago

Even from the smallest details of the detents, this kit is quality. Polished the trigger because that's what I do regardless, but took alot less effort than a standard milspec. Great kit for the money.

My First Choice in Parts Kits

Eli R.
2 years ago

I install these on every build. Would be nice if they came with labels and instructions, but these are easily found online.

Perfect fit

Andrew C.
2 years ago

Everything fit perfect and was nicely built.

AR-15 lower parts kit

Marty W.
2 years ago

Great customer service and product descriptions

Everything Include

Neil J.
2 years ago

All parts needed for a mil spec build. Fast shipping great service.

Parts fit perfect, very good kit

Steven K.
3 years ago

I had no issues at all, everything fit the way it should. I really like the slightly extended take down pins and ambidextrous safety. The trigger pull is very smooth and consistent.

Great quility and price

Matthew p.
3 years ago

Big fan of this lower kit, is such a great deal if building your lower and plan on installing an ambi safety, enhanced bolt catch and mag release. This kit will save you money and time buying and installing them on later. Great kit, will be using one on next build as well.

Solid

Griff
3 years ago

Works great no issues

Great kit

Luigi a.
3 years ago

This is my third kit great kit

Good parts kit w/FCG

Chris S.
3 years ago

Honestly I didn’t expect much better than milspec with this but the trigger actually feels really good for the money! Sure you can spend more and get better but for a sub 1k build I would definitely buy this kit again!

Good parts kit

Robert t.
3 years ago

I used everything with the exception of the included trigger spring. It was a little stiff for my likings. Everything else was perfect. Loved the enhanced take down pins and bolt lock.

Thumbs up

Justin P.
3 years ago

Strike industries always comes through with good quality and looks for the money.

Perfect for new build

Yoshio M.
3 years ago

used to complete a Strike Themed AR build

Excellent value w several enhanced parts

Roger W.
3 years ago

You get A LOT of enhanced parts for an excellent value. This is even a better deal when you get a sale or a coupon.

Nice set!

Alex Z.
3 years ago

Everything there to build the lower receiver! I like that pins holding take-down pins have a needle edge to go into the spring.

My go-to LPK

Greg M.
3 years ago

This is my favorite lower parts kit. The trigger is smooth with very little creep, and the bolt release lever is more ergonomic than normal milspec.

Strike Industries AR15 Enhanced

Daniel N.
3 years ago

Awesome, fit perfectly.

Great service!

Andrew L.
3 years ago

Pieces fit well and go together as they should. Their customer service is top notch. I had a question and they personally respond in a timely manner. Will definitely order from them again.

Strike industries review

Mark A.
3 years ago

The product came in individual packages for each section of firearm and had exact description of what was contained. Very good price as well.

Strikes again

Caleb M.
3 years ago

This lower parts kit is awesome!!! Typical strike….amazing quality.

Great value

George M.
3 years ago

Unlike other lower receiver parts kits I have purchased, everything fits as it should. I have had two others where the J-spring protruded into the hammer that the pin could not go through. IF I had purchased this kit from AR.15 Discounts, they would have replaced it. Not so with the supplier I used. AR15 Discounts has one of the best customer service departments I have ever had read more the pleasure of dealing with.

Great!!!

Lee R.
3 years ago

Very nice, Looks awesome. works great, better that milspec. nice price.

Great item!

Randy V.
3 years ago

Amazing! Fast shipping! Great item!

Good

Francis H.
3 years ago

Thanks is good experience

Strike Industries AR-15 Enhanced Lower Receiver Parts Kit with Trigger, Hammer & Disconnect for .223/5.56

Brian
3 years ago

Perfect kit to get my lower put together. Showed up early as well.

SI enhanced lower kit

Jason S.
3 years ago

Kit was really great. Only gripe is the Ambi safety is sharp on my trigger finger hand. Probably gonna put a different one on

Strike industry lower parts

Lynn H.
3 years ago

They fit and function great. Will buy again.

Good kit except for one spring

Dylan P.
3 years ago

The bolt catch/release spring did not fit in multiple lowers, causing the catch itself to not function properly. This kit should also come with the ambi mag release.

Great value. Nice Trigger.

Waylon B.
3 years ago

Great price and I like the ergonomics. The trigger is also very smooth.

The best

James S.
3 years ago

Awesome exactly what i wanted

Best Lower Kit on the Market

Jason W.
3 years ago

I love this kit. Will always use Strike Industries.

Good LPKs!

Ronald G.
3 years ago

Part kit was complete and fit well. The only thing missing was a trigger guard to complete your build.

Fantastic

David W.
3 years ago

My third Strike enhanced LPK. Work perfectly, and much better than standard mil-spec kits. Certain to buy more.

Solid parts

Brendan M.
3 years ago

All the pieces were there and everything fit snuggly on my aero lower.

Good parts at a good price.

Allen Z.
3 years ago

Perfect fit and finish.

Great part kit overall

Justin S.
3 years ago

I think the parts get is great overall. The only bad thing I have to say is whatever size the little screws are that go into the ambidextrous safety selector need to be a more common size, or include a cheap allen wrench in the current size. Other than that, I feel like it's a very solid parts kit. I used it for a customer's to build and he was very happy with it.

Prompt Trouble Free shopping!

Alan K.
3 years ago

The Strike lower receiver parts kit is full of little pieces that help you run your gun more efficiently. The fire control group is really good. It would pass for a much expensive kit. Great buy!

Parts kkt

Dustin P.
3 years ago

Im happy with strike parts they get a bad reputation for a reason unknown. Aero precision quality at least.

So far so good.

Nathan H.
3 years ago

Good kit and easy to install. I like the look as it isn’t completely stock look.

Mostly Great

Andrii
3 years ago

Overall I am happy with the product parts kit. One thing that’s not included in the kit is a trigger guard. Which I was aware of placing the order. Also some of the parts that had the SI logo etched in were smudged and two pins for the trigger were a hair small.

Solid LPK

Patrick K.
3 years ago

Worth the extra $ over a mill speck LPK for the bolt catch, pins and ambi safety. Trigger is nice as well

Great Produced

Tommie S.
3 years ago

Woks and functions as expected. Would recommend and purchase again.

One of the best!

Jason W.
3 years ago

This is one of the best build kits available!

Good quality and price

Steven M.
3 years ago

This lpk is good quality for a good price. The only enhancements I see are on the bolt catch and detent/takedown pins, but they are good enhancements.

Very nice

Mark D.
3 years ago

Everything in it is very nice and enhanced. Trigger is very smooth & about 4.75 lbs. Very impressed with this lower parts kit. Definitely will buy again.

Great parts

MICHAEL G.
3 years ago

The parts were perfect and everything fit like it should.

Good fit & smooth operation!

George Y.
3 years ago

Used the kit in an Anderson lower and everything went together well. Loved the short throw on the safety and the trigger action was perfect.

Decent item

Levi g.
3 years ago

Great, good quality and came quick

SI AR15

Gregory K.
3 years ago

Nice smooth ambidextrous selector & the trigger breaks crisp at about 4lbs.

Awesome

Michael H.
3 years ago

Strike industries makes kick butt parts.

Lower receiver parts kit-Strike Industries

Wade M.
3 years ago

Great kit. Nice trigger also. Measured with electronic gauge and trigger pull came in at about 4.75 lbs with a good ,crisp break. Highly recommend this kit from AR15DISCOUNTS

Strike Enhanced LPK

Joshua F.
4 years ago

Overall a good LPK. I did have to grind a little off the flat edge of the pivot pin to fit it with an Anderson lower. Good kit though with a nicer than expected FCG.

Quality Service

Spencer j.
4 years ago

While most companies are struggling to keep up during these unprecedented times AR15Discounts.com has shown quality service, expedited shipping and delivered a quality product. I've used sites for purchases and had to wait over two months to be left unsatisfied without a complete order fullfillment.

Bad ass!!!

Jeremy W.
4 years ago

This was the first time I’ve used a Strike Industries lower build kit, and wow!!! The subtle details such as the black detents and custom take down pins make this kit feel like it’s easily worth twice what you pay. It’s now the standard lower kit for all of my company’s rifles!!!

Solid Product

Andrew M.
4 years ago

Great fit, solid finish, and crisp function. Trigger is darn good for a standard trigger. Overall great product!

Strike lower parts

Milton F.
4 years ago

Strike has put together a great lower parts kit that is reasonably priced for what you get, I have used many of them in builds and they are simply to speck, the trigger group is much better than regular mil-spec especially when coupled with lower power spring set. AR15DISCOUNTS have been great to deal with and I have ordered a lot of product and will continue to do so.

Lower build kit

Kenneth B.
4 years ago

Great build kit for the price

Great products as always

Frank S.
4 years ago

This lpk will be going in my Aero Precision lower on a build for my son. Great products and great service!

Lower parts

Christopher F.
4 years ago

This is a great kit. This is going to be my go to kit for my lower builds. AR-15 Discounts is awesome. Great Service.

Good price

Ron P.
4 years ago

Haven’t put it together yet saving it for when I have time

Excellent product excellent company

Steve C.
4 years ago

I couldn’t be more happy A.R. 15 discount at one of the best companies I’ve ever done done

Great lower parts kit

R S.
4 years ago

When I got this kit it thought it was pretty nice and it was easy to install. Haven't got to test it yet but seems to function perfectly. But I realized how good this kit was when I did my next build and used the kit that came with that build. The difference was huge, so huge that I'm waiting for this to be in stock so I can replace the terrible second kit I got with my build. This read more will probably be my go to from now on if it comes back in stock.

Great price

Raymond W.
4 years ago

Not yet used but just about all you need for a good build.

Quality

Joe S.
4 years ago

Appears to be of better quality than most lower end kits available. I like the shape of the detents... they basically have a seat for the spring unlike others.

Worth the money.

Gary C.
4 years ago

Overall, very nice fit and finish. The trigger is crisp without a lot of creep. It has a short throw, ambidextrous safety, which I really like. The only issue I encountered was with the enhanced bolt catch. I installed the kit on a Polymer80 lower but the bolt catch would not function due to a heavy polymer ridge that is molded at the bottom section of the bolt catch area. The polymer read more could be filed down to make it fit but I chose to stick with a stock catch and save this one for another build. Happy customer.

Not really enhanced

Philippe K.
4 years ago

strike Industries labels this as an Enhanced Lower Parts kit but it lacks a trigger guard and extended takedown and detent pins so I am failing to see where the enhancements are? That’s why I only gave this a 3 star review on AR15Discounts which is the same as I will give it on the Strike Industries website. They should call it a semi enhanced lower parts kit with no trigger guard. read more

Strike Industries LPK

Brandon C.
4 years ago

Fantastic LPK! I have built a bunch of ARs recently and was trying out LPKs. The SI LPK to me was the best bang for you buck compared to others I liked such as Seekins and Armaspec. All parts have a unique design and stick out in a good way. The safety selector is short throw and is very nice to toggle. I really like the bolt release as well. Nice feel on all the parts! Great product!

Perfect for my build

Frank S.
4 years ago

I used this in my 300blk pistol. Works great!

Awesome Kit

Nicole V.
4 years ago

Excellent as always

Strike Industries Lower Parts Kit w/ FCG

Sou V.
4 years ago

My experience is only with the PSA EPT so it's very shallow. It feels as crisp as the PSA EPT with a slight lighter pull. Overall I can't really tell the difference between a 4-5 lb trigger pull vs a 7-8 lb trigger pull. The enhanced parts are nice and everything works. Happy with the purchase.

Strike industries AR-15

Robert F.
4 years ago

Great product. Very easy to assemble.

2nd Time using this kit

Ronson T.
4 years ago

Simple to install and an added value over the mil spec kits. Extended mag release, ambi-short throw safety selector and reduced power trigger. Love it.

Good product

Aaron B.
4 years ago

Great product. Well made and easy to install. The detent pins are great and easier than older models to install.

Strike industries lower enhanced part kit.

Carlos C.
4 years ago

Amazing, love it.

Perfect

Chris J.
4 years ago

Second one of these kits and they are consistantly good quality. trigger pull right out of the box feels nice. Not award winning but very very good for the money.

Very good set

Erik O.
4 years ago

I love the bolt catch and the take down pins i recommend this product

Great buy

David M.
4 years ago

Easy installation into my Aero lower. Love the enhanced features. Planning on getting another for my other AR.

Quality parts!

Josh
4 years ago

Love the LPK so far Trigger is crisp the parts are quality and not cheap

So far so good

Ross S.
4 years ago

Everything went together fine, quality was on par with any other kit I’ve used

Amazing parts kit

Tanner H.
4 years ago

Strike Industries makes some of the best Gucci gear on the market and this parts kit is an example of it.

Great!

Elijah N.
4 years ago

I love this company! Affordable ar parts. Havent had any failures or defects!

Excellent Service/Excellent Parts

Lane R.
4 years ago

Building my first AR, and everything on this site will give you the best information and parts needed to successfully complete your build! Great service and quick shipping although a nationwide pandemic! Great place to find what you need! Definitely recommend it!

Strike Industries Enhanced LPK

Justin M.
4 years ago

This lower parts kit is very well made and the fit and finish is excellent! The trigger-pull is very crisp and smooth! Really gives the AR a nice custom look! Great service from ar15discounts.com!

Great product

Horacio D.
4 years ago

This is now my second time buying the strike industries enhanced lpk. When I do another build it will be the first one I look into and get

Great products at great prices!

Rick O.
4 years ago

Strike Industries make great parts at reasonable prices, and never have trouble with anything they make.

SI lower parts kit

Kris K.
4 years ago

Great kit trigger feels great and everything looks awesome on my lower ar15discounts you guys are amazing super helpful and very fast shipping!!!

Forever customer

Joshua F.
4 years ago

Love the quality and price for this kit was cheaper than most factory kits but had better parts

Strike lower parts kit

Patrick H.
4 years ago

With online videos I only made one mistake and it was my own. The parts kit was complete, well packaged and easy to install for first time builder. A really good value for the price. I will buy one as a spares kit.

Awesome Product!

Chris T.
4 years ago

I used this parts kit for my 7.5” pistol build and I love it! The pins are super easy to pop in and out. The trigger is pretty good for a 60$ parts kit. The mag release and bolt catch are nice and big which makes using the rifle quick. I used along with many other strike industries products and I am very pleased with the company’

Amazing product!

Grant S.
5 years ago

They are very clean and sleek and are just what I need. They feel very rugged and of the highest quality, and arrived sooner then I expected

Parts

Johnnie s.
5 years ago

Great.................

Great product! Greater price!

Miguel d.
5 years ago

Everything came together with ease. Trigger is butter!

Top quality

Ben N.
5 years ago

Absolutly love this product the design of the takedown pins is really slick with a nice polished trigger to top it off a wonderful crisp break and reset will absolutly use in my next build

Amazing

Garret B.
5 years ago

Everything fit together perfectly and looks great. Crisp trigger and the 60 degree safety throw is a very positive flick. Had a minor issue with mag release getting hit on the bolt release when trying to screw it in. Just put the mag release in before the bolt release and you’ll be fine.

AR15 Deals Score

Deal (1) Popularity: 416
MSRP:
$74.95
Used Price:
$52.47
Sale Price:
$67.46

Specifications

Brand Strike Industries
Category Lower Parts Kits
Weight 5.6 oz

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