Details
Foe-Hammer SBR Ready 7.5-inch .300 Blackout AR-15 Full Build Kit
The Foe-Hammer SBR Ready Full Build Kit is built around a 7.5-inch .300 Blackout barrel with an HBAR profile, finished in phosphate, paired with a "Panhead" billet upper receiver. It pairs a 7-inch MFFAR7 free-float smooth handguard with an AR-15 birdcage flash hider at the muzzle, running on a pistol-length gas system. A complete bolt carrier group, Mil-Spec charging handle, complete Lower Parts Kit, and carbine buffer-system components are all included. The lower receiver is not included, and this SBR Ready version ships without a brace.
Key Features
- SBR Ready design
- 7.5-inch .300 Blackout barrel, 1:8 twist, HBAR profile, phosphate finish
- Pistol-length gas system with micro low-profile steel gas block
- "Panhead" billet upper receiver, NOFA configuration
- .458-style ejection port
- MFFAR7 7-inch free-float smooth handguard
- AR-15 birdcage flash hider
- Complete Mil-Spec Lower Parts Kit and carbine buffer-system components included
- Lower receiver is not included.
Barrel and Gas System
The barrel runs 7.5 inches long, chambered in .300 Blackout and finished in phosphate with an HBAR profile. It carries a 1:8 twist rate and a 5/8x24 muzzle thread. Gas cycles back to the action through a pistol-length system, running a pistol-length gas tube and a micro low-profile steel gas block sized to a .750-inch journal.
Upper Receiver and Handguard
The upper receiver is a "Panhead" billet unit, built in a NOFA configuration and featuring a .458-style ejection port. The ejection port carries a standard .223/5.56 door with its rod and spring installed. Over the barrel sits a 7-inch MFFAR7 handguard, a free-float smooth design.
Muzzle Device
Capping the muzzle is an AR-15 birdcage flash hider, threaded to match the barrel's 5/8x24 pattern and secured with the included 5/8-inch black crush washer.
Bolt Carrier Group and Charging Handle
A complete AR-15 bolt carrier group is included, made in the USA and listed for use across 5.56 NATO, .223 Remington, .300 Blackout, and .350 Legend. That broader listing describes the BCG itself; the barrel and chambering on this build remain .300 Blackout. A Mil-Spec AR-15 M4 charging handle rounds out the upper's operating components.
Lower Parts Kit and Buffer System
A complete Mil-Spec AR-15 Lower Parts Kit covers the fire-control and lower-control internals needed once a lower receiver is on hand. Behind it sits a Mil-Spec heavy-duty six-position buffer tube, holding a standard AR-15 carbine buffer weighing 3 ounces and a standard USA-made recoil spring. An AR-15 carbine castle nut and Mil-Spec AR-15/M16 receiver end plate secure the buffer tube assembly to the lower.
SBR Ready
This Foe-Hammer kit is configured as SBR Ready, which means it ships without a brace so the buyer can select their own final setup. The included component list above reflects exactly what ships with this kit, and it should be reviewed as supplied when planning the completed build. The lower receiver and any furniture selection remain the buyer's responsibility, separate from what's included here. The SBR Ready designation applies specifically to this configuration of the Foe-Hammer.
Follow all manufacturer instructions and safe handling practices.
Ensure compliance with all applicable federal, state, and local laws.
Lower receiver is not included.
Ships without a brace.
Do not attach a stock unless the resulting configuration complies with all applicable federal, state, and local laws.
