Lower Parts

M4E1 Stripped Lower Receiver, Special Edition: Texas - Anodized Black Our Special Edition: Texas M4E1 Stripped Lower Receiver features a custom engraved State of Texas with a Lone Star graphic on the magwell of our popular M4E1 Lower Receiver. Markings...

The TRIARC Systems TRACK 2.0 Rifle Barrel Kit features a 12.5" TRACK 2.0 Barrel that is optimized for the TRIARC Systems A5/Extended Receiver Extension, VLTOR A5 H1 Buffer and Sprinco Green Buffer Spring. Also included is a Mil-Spec End Plate and Castle...

The TRIARC Systems TRACK 2.0 Rifle Barrel Kit features a 13.9" TRACK 2.0 Barrel that is optimized for the TRIARC Systems A5/Extended Receiver Extension, VLTOR A5 H1 Buffer and Sprinco Green Buffer Spring. Also included is a Mil-Spec End Plate and Castle...

The new MKII version of the GGP-S Series brings a new level of customizability never before seen in GGP rifle receivers. The Billet Receivers are precisely machined from 7075-T6 Aluminum for a perfect fit. The lower receiver includes an ambidextrous bolt...

Lightweight Integrally Machined Magazine Well Flare Oversized Winter Trigger Guard The STT-15L has all the same great aesthetics as our standard STT-15 Receiver Combo but incorporates a significant weight reduction. We set out to design our...

LBE Unlimited Buffer Tube - Colt Gray The Six Position LBE Mil-Spec Spec Diameter Buffer Tube fits all collapsible AR-15 stocks that require mil-spec tubes. This item is perfect for your current build or your spare parts bin. LBE Unlimited is a leading...

LBE Unlimited, Ambi Selector Assembly w/Spring and Detent, Black Finish The LBE ambidextrous selector assembly comes with a selector spring, detent and Hex wrench. Made in the USA.

Q, Big Butt Pad Assembly, Fits Q Fix Stock, Black The Big Butt Pad adds extra padding and thickness to the side folding fix stock. This Product is compatible with the Side Chick.

SOLGW - Loyal 9 Stripped Lower Receiver - Black Sons of Liberty Gun Works builds their lowers from mil-spec 7075-T6 forgings. They contour is fully machined leaving no flash marks from the forging. We take extra care when machining our lower receivers...

LMT® .308 receiver extension tubeLMT offers its 308 receiver extension, or buffer tube, for sale to customers for their builds. This tube is approx. 3/4″ longer than a standard AR-15 style buffer tube. This allows for usage of standard length...

LMT DEFENSE - MRP/AR15 Buffer Tube Kit LMT kept our builders in mind with this essential kit for your next project. The LM556BTK is ready to install in your stripped lower. Kit ships with a dry film lubed, Mil-Spec 6 position tube, standard buffer...

Timney Triggers 683 Replacement Trigger Single-Stage Straight Trigger with 4.50 lbs Draw Weight & Black Finish for Sig MPX Timney is the market leader for Sig replacement rifle triggers. This single-stage trigger is factory tuned for 4.5 lb...