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Dirty Bird AR-15 Multi-Cal Forged Receiver Set vs Grey Ghost Precision MKII Billet AR-15 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 Grey Ghost Precision MKII Billet AR-15 Receiver Set
Summary
Rating
Review Rating Not Rated
Review Rating Not Rated
Rank
#3083
#3097
Weight 0.0000 oz 31.2 oz
Color Black, FDE, Midnight Bronze, OD Green
Details
Brand Dirty Bird Industries Grey Ghost Precision
Prices
MSRP $159.95 $399.00
Used Price $111.97 $279.30
Sale Price $143.96 $359.10

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

Grey Ghost Precision MKII Billet AR-15 Receiver Set

At the end of the day, there’s nothing wrong with MIL-SPEC. It gets the job done, after all. Still, why would you settle for the bare minimum acceptable standard when you could elevate your build with something better? The MKII GGP-S series receiver set is just what you’re looking for. Precision machined to exacting tolerances with a host of upgrades over standard receivers, the GGP MKII Billet AR-15 receiver set is the ideal way to start your build. Features: Precision machined to within +/- 0.001″ tolerances Cut from high strength 7075-T6 aluminum billet Hardcoat anodized black finish with 60 Rockwell surface hardness Integrated ambidextrous bolt release Flared magazine well for faster reloads Pictographic Fire and Safe indicators Multi-caliber lower marking Integral trigger guard Threaded takedown pin hole with set screw Threaded bolt catch pin Nylon-tipped receiver tension screw A proper MIL-SPEC lower receiver’s dimensions can vary over .005″ or more from one receiver to the next. This is fine for a military rifle, but these tolerances can stack up, impacting parts compatibility, fit, and function, especially when using aftermarket components. By comparison, the MKII Billet AR-15 receiver set is machined to exceptionally tight +/- 0.001″ tolerances, allowing for incredible consistency. To further increase accuracy this lower features a nylon tipped tension screw, ensuring your upper and lower fit together without rattle. For enhanced convenience, the bolt catch and takedown pin are threaded for fast and easy installation. Even better, the lower is machined for an ambidextrous bolt catch release. With an extensive military and manufacturing background, and an impressive network of industry and shooting experts, Grey Ghost Precision has pushed on to create not just exceptional firearms and accessories, but make sure those products are accessible to shooters everywhere. They also fully stand behind their products, with a limited lifetime guarantee!

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