Harrington and Richardson TIA Features The Harrington & Richardson TIA is chambered in 5.56 NATO and pairs a Special Forces COTS M16A2 lower with an M16A2 upper fitted with M4 feed ramps for smooth reliable feeding. The 10 pencil profile barrel is made from 4150 chrome moly vanadium steel with a chrome-lined bore and Parkerized finish and its 1 in 7 twist rate stabilizes heavier 5.56 bullet weights for extended-range accuracy. A 1/2x28 threaded muzzle sits beneath the included TIA flash hider giving the shooter a period-correct look while retaining suppressor compatibility. The Carpenter 158 steel bolt and full-auto profile carrier are built to Mil-Spec standards keeping the action running reliably across a wide range of ammunition. Carry handle iron sights and an A2-style front sight base preserve the classic retro silhouette while offering a durable adjustable rear sight that needs no batteries. The HAR-15 adjustable pistol stabilizing brace attaches to a carbine-length 6-position Mil-Spec buffer tube letting the shooter dial in the fit for their preferred shooting position. A carbine handguard with heat shields and an A2-style pistol grip keep the controls familiar to any Mil-Spec AR shooter while the 31 overall length keeps the pistol compact for transport and storage. Feeding from a 30-round magazine the TIA delivers a light handy 5.56 pistol built for the range the field or general recreational shooting. Harrington and Richardson TIA Specifications Manufacturer: Harrington and Richardson Model: TIA Caliber: 5.56 Capacity: 30+1 Barrel Length: 10 Barrel Description: Pencil Profile Chrome Moly Vanadium Parkerized Chrome Lined Twist Rate: 1 in 7 Action: Semi-Auto Muzzle Device: TIA Flash Hider Finish: Anodized Color: Black Sights: Carry Handle Iron Sights Stock: HAR-15 Adjustable Pistol Brace Grip: A2 Pistol Grip Safety: Manual Safety Thread Pattern: 1/2x28 Overall Length: 31 Hand: Right Hand Available At: GrabAGun