TacFire SSRK556LPK Lower Parts Kit Unassembled Rifle Kit 223 Rem/5.56x45mm NATO AR Platform Aluminum 1/2"-28 tpi

TacFire SSRK556LPK Lower Parts Kit Unassembled Rifle Kit 223 Rem/5.56x45mm NATO AR Platform Aluminum 1/2"-28 tpi. The TacFire SSRK556LPK rifle build kit includes a 16" 5.56 NATO M4 contour nitride barrel with a birdcage flash hider and crush washer; a 15" M-Lok free-floating handguard; an AR-15 5.56/.223/.300 AAC stripped billet upper receiver with M4 feed ramps; a Mil-Spec charging handle with steel latch; a dust cover; an AR-15 forward assist; an AR-15 standard receiver end plate; a Mil-Spec/commercial castle nut; a buffer tube aluminum; an AR-15 3oz buffer with tube spring; a USA-made lower parts kit; and an AR-15 standard A2-style black pistol grip. This is sold as a build kit for AR-15 platform assemblies.