AR-15 / M4

The Geissele Automatics Right-Handed Posi-Lock Safety Selector features a positive and tactile design that snaps into position for faster weapon manipulation. It is machined from 400 series stainless steel and black anodized. It features deep serrations...

The Ratchet Lock Castle Nut End Plate set works with mil-spec OR commercial buffer tubes and eliminates the need for staking. A quick upgrade to any rifle build, the Ratchet Lock Castle Nut End Plate features a QD mount and easy installation with any...

*Back in Stock Soon*   These have Mil-Spec Carrier Key Screws. If you prefer the Premium Variant (upgraded w/ OCKS Carrier Key Screws), Click Here. Microbest is one of the finest manufacturers of mil-spec bolt carrier groups for the military and...

Dead Air's flash hider has a unique design featuring mass shifted equal length tines. The end result is a flash hider that does not “ping.” It is compatible with DA's Sandman Series and KeyMo equipped suppressors. The KeyMo flash hider is...

The Arisaka Quick Detach (QD) Mount is a low profile design for M-Lok handguards. It features an anti-rotation interface and accepts all standard QD sling swivels, as well as the Geissele/ALG Defense forged QD sling swivel. Height: 0.375″ Weight:...

BCM QRF-10 (Quad Rail Free Float Handguard)   Featuring the same industry leading barrel nut and lock up design as originally introduced on BCM's evolutionary KMR handguard, the QRF Series of handguards gives the shooter modularity in the picatinny...

This .223 Wylde chambered 14.5 inch barrel is machined from 416 Stainless Steel with a bead blasted finish. Ballistic Advantage's Premium Series Barrels feature a Nickel Boron Coated Extended M4 Feed Ramp Extension. Hanson Series Barrels feature BA's...

15" ION Lite MLOK Handguard: Ideal for barrels 16" and up. Includes ION Barrel Nut Wrench. New Gen 5 14.87" Exact length  1.35" ID 7 Sided Design allows 45deg mounting options 2 Limited Rotation QD's No timing of barrel nut required, no shims...

The Criterion AR-15 Hybrid barrel is designed for extreme accuracy without the added weight that a typical HBAR contour has. These barrels are chambered in .223 Wylde with a 1:8 button rifled twist rate to squeeze out every bit of accuracy possible. The...

NOTE: All BCM bolt carrier groups are factory test fired. The BCG may show handling marks consistent with these quality control procedures.The Bravo Company Manufacturing Bolt Carrier Group, with a parkerized exterior and chrome lined carrier interior,...

The Geissele Maritime Bolt Catch is designed with the demanding user in mind and will work with any lower receiver designed to accept a MIL-SPEC AR-15/M16 bolt catch. The increased surface area promotes ease of function when locking back or releasing the...

MIL-Spec CrMOV, Chrome lined, 14.5" M4 Enhanced SOCOM Barrel Midlength, .750 Gas Journal w/alignment notch for use with our TABBED gas blocks (non-tabbed gas blocks will still work.) Similar to the original Colt SOCOM barrel profile, but...