Aero Precision M4E1 Threaded AR-15 Pistol, .300 AAC Blackout, 10.5 in Faxon Barrel, BCM QRF Rail, CMC Trigger, SBA5 Brace
This Aero Precision M4E1 Threaded AR-15–pattern pistol in .300 AAC Blackout is a custom-configured build with quality components and a distinctive rattle-can camouflage finish. Notable upgrades include a 10.5 inch Faxon barrel with adjustable Faxon gas block, a BCM QRF free-float quad rail, a SilencerCo ASR 3-port muzzle brake, a Toolcraft nickel-boron BCG, and a CMC single-stage trigger. It uses Aero’s M4E1 upper and lower receivers and is configured with an SB Tactical SBA5 brace and Magpul MOE-K2+ grip.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: This pistol shows markings from previous handling and use, and it wears a non-factory rattle-can camouflage finish. Photos document the finish and wear in detail.
What’s Included
- 1x 30-round Magpul PMAG polymer magazine
Built on Aero Precision’s M4E1 platform, this pistol pairs the M4E1 Threaded upper with an M4E1 lower that has an integrated trigger guard and a threaded bolt-catch pin. The upper is compatible with third-party free-float handguards and is fitted here with a Bravo Company BCM QRF free-float quad rail. Receiver markings include "MOD M4E1," "CAL: MULTI," and "AERO PRECISION, LAKEWOOD, WA."
Chambered in .300 AAC Blackout (7.62x35mm), it uses a 10.5 inch Faxon barrel with a threaded muzzle and a SilencerCo ASR 3-port muzzle brake. The ASR-pattern brake is compatible with ASR-mount suppressors. A Faxon adjustable gas block allows tuning for different loads. The pistol operates via a semi-automatic, direct-impingement system.
The internals are configured for smooth operation and a clean trigger press, featuring a Toolcraft nickel-boron bolt carrier group and a CMC single-stage trigger. Controls include a mil-spec charging handle and a mil-spec manual safety selector with pictograms. No sights are included.
Ergonomics and support come from a Magpul MOE-K2+ grip and an SB Tactical SBA5 brace with strap. The receivers are 7075-T6 aluminum finished in a non-factory rattle-can camouflage pattern, with the handguard in 6061-T6 aluminum. Stated capacity is 30+1. Country of origin is the United States.