Details
Hard Resolve 7.5 Inch Pistol Gas 5.56 NATO AR 15 Full Build Kit with M Lok Handguard and Magpul BTR Brace
The Hard Resolve 7.5 inch full build kit delivers a compact 5.56 NATO setup built around a 7.5 inch barrel with 1:7 twist. The 7 inch freefloat M Lok handguard keeps weight down while providing modular mounting surfaces. This kit includes the upper assembly, bolt carrier group, charging handle, buffer system, lower parts kit, and Magpul BTR stabilizing brace.
Key Features
- 7.5 inch barrel, 1:7 twist, 5.56 NATO chambered
- 7075 T6 aluminum upper receiver with M4 feed ramps and anodized finish
- 7 inch freefloat M Lok handguard, aluminum construction, black finish
- Micro low profile gas block, 0.75 diameter, steel construction
- Stainless pistol length gas tube optimized for 7.5 inch barrel
- AR 15 bolt carrier group, 9310 alloy steel, nitride finish
- Mil spec charging handle
- Heavy duty 6 position buffer tube, 3 oz buffer weight
- Lower parts kit included
- Magpul BTR stabilizing brace
- A2 birdcage flash hider, 1/2x28 thread pitch
Perfect For
- Compact build projects focused on reduced overall length
- Shooters seeking Magpul BTR brace functionality
- High velocity applications in confined platforms
- Builders preferring Magpul accessories
Magpul BTR Stabilizing Brace
The Magpul BTR stabilizing brace provides Magpul quality construction and design. This brace option comes included with the kit, offering a configuration option for compact pistol builds with Magpul ergonomics and proven reliability.
Compact Platform Configuration
The 7.5 inch barrel with pistol length gas system creates a short, maneuverable setup. The 1:7 twist stabilizes heavier projectiles effectively at close to moderate range. Micro low profile gas block keeps the sight plane clean under the handguard. The pistol gas system provides reliable cycling with standard 5.56 NATO ammunition in a compact configuration.
Premium Bolt Carrier Group
The bolt carrier group features 9310 alloy steel construction with nitride finish. This material provides enhanced wear resistance and corrosion protection in a high pressure platform. The nitride treatment penetrates the steel surface rather than coating it, maintaining dimensional tolerances while adding durability.
Freefloat M Lok Handguard System
The 7 inch freefloat M Lok handguard extends nearly to the muzzle device, maximizing usable mounting length without adding bulk. M Lok slots allow modular accessory attachment while maintaining a slim profile. Aluminum construction keeps weight manageable on a compact platform.
Full Build Kit Components
This kit includes the upper assembly with barrel and handguard, bolt carrier group, charging handle, buffer tube, buffer, recoil spring, castle nut, end plate, lower parts kit, and Magpul BTR stabilizing brace. Lower receiver not included.
Follow safe handling and manufacturer instructions. Lower receiver not included. Ensure compliance with all applicable laws.