Ruger

RUGER AR-5.56 MPR M-LOK (FIXED MAG) 5.56 / 223 Stock: Black Synthetic, Collapsible Handguard: Free-Float With Magpul M-LOK Slots Sights: None Barrel Length: 18" Thread Pattern: 1/2"-28 Twist: 1:8" RH Capacity: 10 Finish: Type III Hard Coat Anodized Height: 8" Weight: 6.8 lb. Overall Length: 35" - 38.25" Length of Pull: 11.10" - 14.40" Grooves: 5 Also includes: one, 10-round metal magazine (FIXED MAG)