SanTan Tactical STT-15 Features The SanTan Tactical STT-15 is built around true matched hand-finished pillar billet upper and lower receiver sets machined from aluminum giving the rifle a tighter fit and finish than typical forged AR-15 receivers. Its gas operating system cycles smoothly through the 16 barrel and a Picatinny top rail provides a continuous reliable mounting surface for optics. The single-stage trigger breaks at a crisp 3.5 lb pull weight delivering the predictable release serious shooters expect from a premium build. A 1/2x28 thread pattern at the muzzle accepts standard compensators and other muzzle devices for recoil management. An M-LOK handguard offers versatile low-profile accessory mounting along the fore end while a Black Magpul grip and a Mil-Spec 6-position buffer tube stock round out the ergonomics package for a comfortable adjustable fit. The lower receiver is fully ambidextrous with an ambidextrous safety selector and three QD sling attachment points that let shooters configure the rifle for their preferred carry method and shooting hand. Finished entirely in a durable black anodized coating the STT-15 stands up to hard use without showing wear. Built from premium billet components rather than standard forgings the SanTan Tactical STT-15 gives discerning AR-15 buyers a genuinely elevated platform. SanTan Tactical STT-15 Specifications Manufacturer: San Tan Tactical Model: STT-15 Type: AR-15 Action: Semi-Auto Caliber: 5.56 Barrel Length: 16 Operating System: Gas Capacity: 30+1 Receiver Material: Aluminum Receiver Description: Picatinny Rail Handguard: M-LOK Grip: Black Magpul Stock: Mil-Spec 6 Position Buffer Tube Trigger: Single Stage 3.5 lbs Thread Pattern: 1/2x28 Safety: Ambidextrous Height: 7.8 Available At: GrabAGun