Polymer 80 INC P80308KITGRY: Polymer80's 308 Warrhogg Lower Receiver Kit features an industrial-strength, injection molded, reinforced polymer receiver with a solid core designed for the DPMS-styled .308 in an 80 percent format. The 308 unit is ATF-compliant, well within their defined parameters of a receiver blank. The .308 80 percent lower receiver design features a beefed up buffer tube ring; ribbing across the entire upper surface area; no-thread design on pistol grip area; stiffened magwell with an ultra-light design. This W308 Lower Receiver kit includes: pistol grip nut and screw; Warrhogg .308 jig; end-mill bit with laser etched depth mark; drill bits for safety selector switch hole, pin holes for trigger and hammer, trigger hole; trigger guide. This model has a gray finish.