.17 HMR | AR-15 Uppers
All Alexander Arms® upper receiver assemblies are fully-complete, function-tested, and ready to fire. All available products and options are visible in the Online Store. We do not produce custom weapons.
The Alexander Arms® .17 HMR AR-15 upper receiver assembly is offered standard with an 18" stainless steel, button-rifled, 1:10 twist barrel with straight flutes, muzzle threaded 1/2-28 TPI RH for standard .223/5.56 muzzle devices. The standard handguard is our mid-length, G10 fiberglass composite, non-vented, mid-length, free-floating handguard. This product includes the required lower receiver conversion parts kit and two 10-round magazines. The weapon features a blowback operating system. Weight of upper is 4.5 pounds. This unit is 100% complete and is compatible with any standard-specification lower receiver after installation of included parts kit.
This upper features a flat-top receiver, 18" stainless steel (painted black), button-rifled 1:10 twist barrel with straight flutes, threaded 1/2-28 TPI RH. It comes with the Manticore Arms Transformer Rail handguard and your choice of two sets of panels, no muzzle device, a Cerakote finish of your choice (FDE, OD Green, or Graphite Black, you may request additional colors however additional charges may apply), and one 30 round 5.56 NATO magazine. This unit is 100% complete and is compatible with any standard-specification lower receiver (no modifications required). Weight of upper is 3.85 lbs
Upper shown in FDE with Snake Skin grip panels and KeyMod panels, a Proto Tactical Z-Comp Muzzle Brake