Davidson Defense Mutton Chops 10.5-inch Pistol-Gas 1:8 .300 BLK AR-15 Pistol

The Davidson Defense Mutton Chops Complete .300 Blackout Pistol delivers reliable performance in a compact AR-15 platform optimized for subsonic and supersonic .300 BLK ammunition. Featuring a 10.5-inch 4150 CrMoV HBAR barrel with phosphate finish and 1:8 twist rate, 6061-T6 billet aluminum upper receiver, KeyMod freefloat handguard in black, pistol-length gas system with 0.750 gas block for smooth cycling, Gauntlet Arms nylon-reinforced polymer stabilizing brace, 9310 steel nitride BCG, and mil-spec charging handle—perfect for home defense, suppressed shooting, tactical applications, and builders seeking a compact, powerful platform with improved control, accessory versatility, and proven .300 Blackout performance.
Key Features:
10.5-Inch HBAR Barrel - 4150 CrMoV Steel: Heavy barrel profile with phosphate finish for durability
.300 Blackout Chambering: Optimized for subsonic and supersonic ammunition performance
1:8 Twist Rate: Ideal stabilization for .300 BLK projectiles from 110gr to 220gr
Pistol-Length Gas System: Reliable cycling with 0.750 gas block for smooth operation
6061-T6 Billet Aluminum Upper: Precision-machined upper receiver for strength
KeyMod Freefloat Handguard: Black finish with accessory versatility
Gauntlet Arms Stabilizing Brace: Nylon-reinforced polymer construction for improved control
9310 Steel Nitride BCG: Durable bolt carrier group with nitride finish for enhanced lubricity
Mil-Spec Charging Handle: Standard charging handle for reliable operation
Compact AR-15 Platform: 10.5-inch configuration for maximum maneuverability
Lightweight Yet Durable: Optimized materials for balanced weight and strength
Complete Pistol: Ready-to-shoot configuration with all components
Perfect For:
Home defense and personal protection with compact platform
Suppressed shooting and subsonic ammunition applications
Tactical applications requiring maneuverability
.300 Blackout enthusiasts seeking complete pistol builds
Close-quarters shooting and vehicle deployment
Builders seeking compact, powerful .300 BLK platforms
.300 Blackout Performance with 10.5-Inch Barrel: The 10.5-inch barrel length is ideal for .300 Blackout, providing optimal performance with both subsonic and supersonic ammunition while maintaining a compact profile. The .300 BLK cartridge achieves complete powder burn in shorter barrels compared to 5.56 NATO, making this 10.5-inch configuration highly efficient without sacrificing velocity. The 1:8 twist rate ensures ideal stabilization for .300 BLK projectiles from lightweight 110-grain supersonic rounds to heavy 220-grain subsonic bullets, delivering versatility for hunting, tactical applications, and suppressed shooting.
HBAR Profile & Pistol-Length Gas System: The heavy barrel (HBAR) profile provides increased rigidity and heat dissipation compared to standard profiles, maintaining accuracy during extended shooting sessions and improving barrel harmonics for consistent shot placement. The 4150 CrMoV steel construction with phosphate finish ensures durability and corrosion resistance. The pistol-length gas system with 0.750 gas block ensures smooth cycling with .300 Blackout's unique pressure curve, providing reliable operation with both subsonic and supersonic loads without excessive recoil or carrier velocity.
Premium Billet Upper & KeyMod Handguard: The 6061-T6 billet aluminum upper receiver is precision-machined for strength and tight tolerances, ensuring consistent performance and durability. The KeyMod freefloat handguard in black finish offers accessory versatility with KeyMod attachment slots for lights, lasers, foregrips, and other accessories while eliminating barrel contact for improved accuracy. The freefloat design ensures consistent point of impact regardless of mounted accessories, while the KeyMod system provides secure, low-profile mounting without the weight of continuous Picatinny rails.
Gauntlet Arms Brace & Complete Configuration: The Gauntlet Arms stabilizing brace features nylon-reinforced polymer construction for durability and reduced weight, improving control during rapid fire and providing enhanced stability. The lightweight yet durable design maintains balance on the compact pistol platform. The 9310 steel nitride BCG provides enhanced lubricity and wear resistance for reliable cycling with .300 Blackout ammunition, while the mil-spec charging handle ensures consistent operation. This complete pistol represents a solid choice for builders seeking a compact, powerful platform that combines maneuverability with the hard-hitting performance of .300 Blackout in a rugged, ready-to-shoot configuration.