Bolt action upper receiver combines with any off-the-shelf AR-15 lower to create a professional-quality, ultra-long range rifle. Receiver is fully machined from a single piece of 4140 steel barstock, heat treated for superb strength, Parkerized, and then top-coated with a tough, corrosion-blocking CeraKote™ ceramic finish. Heat-treated 4340 steel bolt uses the time-tested two lug push-feed design for tremendous strength and reliability. Machined 7075 aluminum handguard has integral MlL-STD 1913 Picatinny quad-rails for mounting a full range of accessories, including a bipod and, on the extended top rail, any type of long-range optic. Button-rifled barrel is free-floated for consistent accuracy and available in 4140 or LW19 chrome-moly steel, depending on model. All models feature an integrated muzzle brake for reduced felt recoil and fast follow-up shots. T1 Duty is chambered in .416 Barrett and designed for tactical operations. This single-shot features a LW19 chrome-moly steel Lothar-Walther barrel with a match-grade chamber for sub-MOA performance using match ammo. 29" barrel only. T1 Ultralite is a single shot chambered for the popular .50 BMG cartridge, with a 24" or 29" Mossberg-made 4140 chrome-moly barrel. U.S. mil-spec standard chamber. T2 Ultralite is a .50 BMG repeater with the same features as the T1 and a side-mounted, 5-round Accuracy International magazine. U.S. mil-spec standard chamber, 24" or 29" barrel.
Sinclair, Issue:3A, Page:225
Receiver - 4140 chrome-moly steel hardened to Rc 42-45, Parkerized, with a CeraKote topcoat, matte black. Bolt - 4340 chrome-moly steel hardened to Rc 42-45, Parkerized, matte black. Bolt Handle - ETD 150 steel, Parkerized/CeraKote finish, matte black. Firing Pin - 4142 chrome-moly steel, Parkerized, black. Hammer – 1018 carbon steel hardened to Rc 42. Handguard – 7075 T6 aluminum, CeraKote finish, matte black. All models fit mil-spec AR-15 lower receiver (not included), no gunsmithing required. Duty – Barrel: LW19 chrome-moly steel, with 12L14 steel muzzle brake, Parkerized, matte black. Available in .416 Barrett only; 6-groove, 1-11" twist rifling. Total weight: 17.3 lbs. (7.8kg) weight. Ultralite – Barrel: 4140 chrome-moly steel, Parkerized, matte black. Available in .50 BMG only; 8-groove, 1-15" twist rifling. Total weight: 15 lbs (6.8kg) w/24" barrel; 16.7 lbs (7.6kg) w/29" barrel.