BCM BCM4 11.5 in 5.56 NATO AR Pistol – Custom Build with Riflespeed Adjustable Gas Block, HUXWRX QD Flash Hider, Radian Controls, SBA4 Brace
This BCM BCM4-based AR pistol stands out with a BCM lower receiver paired to an upper assembled from multiple manufacturers and a focused selection of quality components. It features an 11.5 in 5.56 NATO direct-impingement system, a free-float M-LOK handguard, a Riflespeed adjustable gas block, and a HUXWRX Flash Hider-QD 5.56. Ambidextrous Radian controls, a nickel-finished single-stage trigger with anti-walk pins, and an SB Tactical SBA4 brace complete a well-equipped configuration.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: The exterior shows a few small, superficial scratches and blemishes from light handling. Surfaces present cleanly throughout.
What's Included
- Three 30-round Magpul PMAG polymer magazines
- Kryptek soft case
- T-Rex Arms sling
- Radian Raptor-LT ambidextrous charging handle (installed)
- Radian ambidextrous safety selector (installed)
- Magpul B.A.D. Lever on bolt catch (installed)
- Riflespeed adjustable gas block with indexed dial (installed)
- HUXWRX Flash Hider-QD 5.56 muzzle device (installed)
- M-LOK QD sling socket on handguard (installed)
- SB Tactical SBA4 arm brace (installed)
Built on a BCM BCM4 lower receiver marked "CAL MULTI," this AR pistol uses an upper assembled from multiple manufacturers and is chambered in 5.56mm NATO. The 11.5 in barrel has a threaded muzzle with a HUXWRX Flash Hider-QD 5.56 installed. The direct-impingement action is paired with a Riflespeed adjustable gas block featuring an indexed dial for precise tuning.
A free-float aluminum M-LOK handguard provides versatile accessory mounting and aligns with a continuous, T-marked top Picatinny rail that runs across the receiver and handguard. The flat-top upper includes a forward assist and ejection-port cover, maintaining a dependable feature set.
Controls and ergonomics are enhanced with a Radian Raptor-LT ambidextrous charging handle and a Radian ambidextrous safety selector. A Magpul B.A.D. Lever is fitted to the bolt catch for streamlined manipulation. The pistol uses a Magpul K2 grip, and an SB Tactical SBA4 adjustable brace is installed on a carbine buffer tube for a secure, multi-position fit.
The fire-control group features a nickel-finished single-stage trigger secured with anti-walk pins. Capacity is stated at 30+1 with the STANAG magazine interface. The pistol wears a matte black finish and is made in the USA.