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Dirty Bird MCFA Ambidextrous Matched 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 MCFA Ambidextrous Matched Receiver Set Grey Ghost Precision MKII Billet AR-15 Receiver Set
Summary
Rating
Review Rating Not Rated
Review Rating Not Rated
Rank
#3093
#3097
Weight 0.0000 oz 31.2 oz
Color Black, FDE, Midnight Bronze, OD Green, Sniper Grey
Details
Brand Dirty Bird Industries Grey Ghost Precision
Prices
MSRP $379.95 $399.00
Used Price $265.97 $279.30
Sale Price $341.96 $359.10

Receiver Sets Descriptions

Dirty Bird MCFA Ambidextrous Matched Receiver Set

Introducing the Dirty Bird Industries Multi-Cal Forged Ambidextrous (MCF-A) Receiver Set. 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. Features: Ambidextrous Bolt Catch / Release The Dirty Bird MCF-A Lower Receiver uses MVB’s patent pending mechanism that implements an Ambidextrous Bolt Catch / Release with elegance, rather than complexity. The mechanism both releases and actuates the bolt catch automatically. If the bolt is already in battery, hitting the lever will raise the bolt catch, enabling you to lock the bolt back. If the bolt is locked-back, hitting the lever will release the bolt. Simple. The mechanism is non-interfering, meaning that if the Ambi bolt lever is damaged during hard-use or movement is blocked by debris, the standard bolt catch / release paddle still functions flawlessly. The mechanism consists of only 4 proprietary components, all of which are machined from Billet S7 Tool Steel and QPQ Nitrided which means pretty much anything on the lower would break before they do. Utilizes zero hex screws. Instead, the Ambi Bolt Catch lever is installed with a standard bolt-catch roll pin. This simplifies things and gives the unit a higher level of serviceability. 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. Upper Receiver Features: 7075-T6 Aluminum Forging from Cerro Fabricated Products Mil-Spec, MIL-A-8625 Type III Hardcoat Anodized Finish Precision Machining To Ensure Flawless Use with Aftermarket Products The Dirty Bird Ambidextrous Receiver Set is the perfect building block for your next AR Build and we promise that you will not be disappointed. Made in the USA Backed by the Dirty Bird Limited Lifetime Warranty *Limited compatibility with anti-walk / anti-rotation pins. We can confirm compatibility with Dirty Bird Brand Anti-Walk pins. *Black color is type 3 hard anodized per mil-spec. Other colors will be Cerakote. *Will not come with takedown/pivot pins.

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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