80% Lowers

Grid Defense AR-15 80% Lower Receiver - Raw Machined from 7075 Forged Aluminum Made in house in the USA Flared and Broached Magwell Raw Aluminum Finish Has Fire/Safe Makings Can be used for Multiple Calibers .223/5.56/300BLK/9mm/7.62×39/6.5...

Grid Defense AR-10 80% Lower Receiver Without Fire/Safe - Black Machined from 6061-T6 Billet Aluminum Made in house in the USA Flared and Broached Magwell Finished in Hard Coat Black Anodize Does not have Fire/Safe Makings Compatible with DPMS...

Grid Defense AR-10 80% Lower Receiver Without Fire/Safe - Raw Machined from 6061-T6 Billet Aluminum Made in house in the USA Flared and Broached Magwell Raw Aluminum Finish Does not have Fire/Safe Makings Compatible with DPMS Standard Upper...

Grid Defense AR-15 80% Lower Receiver With Fire/Safe Engravings - Black Machined from 7075-T6 Aluminum Forging 8625 Type III Hardcoat Anodize – Black Flared and broached magazine well Rear upper lug pocket cut out Fits all mil-spec upper...

Grid Defense AR-15 80% Lower Receiver without Fire/Safe Engravings - Black Machined from 7075-T6 Aluminum Forging 8625 Type III Hardcoat Anodize – Black Flared and broached magazine well Rear upper lug pocket cut out Fits all mil-spec upper...

Grid Defense AR-15 80% Lower Receiver - Raw Machined from 7075 Forged Aluminum Made in house in the USA Flared and Broached Magwell Raw Aluminum Finish Does not have Fire/Safe Makings Can be used for Multiple Calibers .223/5.56/300BLK/9mm/7...

Grid Defense AR-9 80% Lower Receiver - Black Finished in hard coat black anodize Machined from 6061 billet aluminum Compatible with any Glock style small frame pistol calibers Compatible with Glock pattern or style magazines Magazine release...

Grid Defense AR-9 80% Lower Receiver - Raw Raw Aluminum Finish Machined from 6061 billet aluminum Compatible with any Glock style small frame pistol calibers Compatible with Glock pattern or style magazines Magazine release button and ejector...