Ever wanted to build a complete AR-15 from scratch? Well, now you can with our complete AR-15 build kit! This kit includes all the parts, jigs, and drill bits needed to complete the Polymer80 80% lower, and the rest of the TacFire parts kit. Best of all, it can ship straight to your doorstep since the lower is not completed and requires finishing.





The RL556v3™ features Polymer80’s proprietary polymer composite, a solid core design, flared magwell, and beefier mil-spec buffer tube housing. The pistol grip area features a unique threadless design specific to Polymer80 rifle lowers.

The kit includes:

80% Polymer AR15 Lower Receiver (Mil-spec)

Polymer Jig

Trigger Hole Drill Guide

Drill Bits and End Mill

TacFire's AR-223 Unassembled pistol build kit includes a black parkerized barrel with a 1:7 twist rate, 1/2x28 A2 flash hider; a Slim M-Lok free-float handguard; 7075-T6 billet aluminum stripped upper; 5.56 bolt carrier group; Mil-Spec charging handle, dust cover, forward assist, heavy buffer, pistol length gas tube, low profile gas block; complete pistol buffer tube, A2 black pistol grip and lower parts kits all made in the USA. This 223 Wylde model has a 7.5" barrel and 7" handguard.