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San Tan Tactical STT-15 PILLAR Billet Receiver Combo - STT-15-PILLAR-COMBO vs Dirty Bird AR-15 Multi-Cal Forged Receiver SetReceiver Sets

Put receiver sets head to head to compare size, weight, and more.

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Receiver Sets Dirty Bird AR-15 Multi-Cal Forged Receiver Set San Tan Tactical STT-15 PILLAR Billet Receiver Combo - STT-15-PILLAR-COMBO
Summary
Rating
Review Rating Not Rated
Review Rating Not Rated
Rank
#3083
#3082
Weight 0.0000 oz 17.6 oz
Color Black, FDE, Midnight Bronze, OD Green
Details
Brand Dirty Bird Industries San Tan Tactical
Prices
MSRP $159.95 $469.99
Used Price $111.97 $328.99
Sale Price $143.96 $422.99

Receiver Sets Descriptions

Dirty Bird AR-15 Multi-Cal Forged Receiver Set

Dirty Bird Industries AR-15 Forged Multi-Cal Lower Receiver: Start with Quality Forgings All MCF-A lowers are machined from top-tier 7075 Aluminum Forgings from Cerro Fabricated Products. It is a common misconception that all forgings are created equal. Cerro Fabricated Products has been a leader in precision forging, machining, heat treating and more since 1915. Meticulous Machining We wanted perfection, so we teamed up with the folks at MVB Industries. MVB, best known for their innovative ARC-X PDW Stock, is one of the industries’ best kept secrets. And while we’d love to keep them all for ourselves, we can’t talk about the quality of this lower without giving huge props to their team. Lots of companies are known for their creative vision, others are known for their unwavering attention to detail. MVB does both, and they do it very, very well. A Quality-Control Centered Process You’ll notice that in addition to ATF issued serial numbers, all of the lowers feature a unique identifier machined near the pistol grip interface. This is for tracking each individual unit throughout the production process. This added step allows QC staff to trace any potential quality issues back to an exact machine and a given batch, no matter how long it has been since that unit was produced. Practical Improvements It is one thing to add features to a battle proven design that is over 60 years old. There are some pretty crazy lowers out there, but are they practical? Do they sacrifice reliability? Do they make the lower more difficult to service or upgrade? Self-Adjusting Receiver Tensioner The MCF-A utilizes a spring-loaded plunger to reduce slop between the upper and lower receiver. No more tension screws or accu-wedges. Dirty Bird Industries AR-15 Stripped Upper Receiver: The Dirty Bird Industries AR-15 Cerro Forged Stripped Upper Receiver is precision machined to M16/M4 Mil-Spec using top quality Cerro Forgings. They are then finished with a uniform Mil-Spec Type III hardcoat anodizing. These units are quality checked throughout the process to ensure consistent quality from unit to unit. Builders know that not all mil-spec forged upper receivers are created equal. Sub-par forgings suffer from pitting and structural defects, poor anodizing can result in a purplish or chalky finish that doesn’t last and sloppy matching can result in mis-sized lugs, burrs or other machine marks. You have Dirty Bird’s word that these uppers will be free from excessive pitting, machined to spec and finished with quality (not purple or chalky) hard coat anodizing. Features: 7075-T6 Aluminum Cerro Forgings M4 Feedramps .250 takedown pin holes Port Door (Dust Cover) and Forward Assist not included 100% American Made Dirty Bird Industries’ Limited Lifetime Warranty

San Tan Tactical STT-15 PILLAR Billet Receiver Combo - STT-15-PILLAR-COMBO

The San Tan Tactical STT-15 Pillar Billet Receiver Set was designed from the ground up to be truly ambidextrous without making any compromises. Machined out of a solid block of 7075-T6 aluminum on state-of-the-art CNC machinery. This allows for a greater degree of precision for extremely tight tolerances and additional features like lightening cuts to reduce weight and an enlarged magazine well and trigger guard. Whether you are right or left handed or the situation requires you to shoot with your off-hand, a rifle built on this receiver set won’t hold you back. Machined right into the lower receiver are bolt and magazine release buttons on each side giving you better control over your rifle without needing to add aftermarket parts. The STT-15 billet AR-15 receiver set from San Tan Tactical offers uncompromising performance, so you can build the rifle you need. Features: Machined from 7075-T6 aluminum Mil-Spec Type III hardcoat anodized black Fully ambidextrous design Both mag and bolt releases come installed Compatible with Mil-Spec parts kits .154” trigger pin holes Lightened receiver cuts Enlarged trigger guard and beveled magazine well Receiver tension screw Upper receiver comes assembled QD sling swivel slots The lower receiver comes with both magazine and bolt releases assembled but a lower parts kit is required to finish it. Compatible with all Mil-Spec components like a trigger with .154” pin diameters and ambidextrous safety selectors. However, the upper receiver comes fully assembled with a dust cover and forward assist. Just thrown in your favorite ambidextrous charging handle and you have a rifle that doesn’t discriminate against lefties. Additional features of this AR-15 billet receiver set is built in quick detach sling swivel slots on both sides and a receiver tension screw that can be accessed through the bottom near the pistol grip. San Tan Tactical believes in carrying on the tradition of American designed and made firearms and that is exactly what they are doing. Their receivers and lower parts are some of the most innovative in the industry and they are proud bring you a product not only made from American sourced materials, but American machinery as well. They take the time to listen to customers critiques and are constantly evolving their products to satisfy your needs.

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