Davidson Defense Hyperion 10.5-inch Carbine-Gas 5.56 NATO AR-15 Drop-In Quad-Rail Handguard Pistol Upper Build Kit

Hyperion 10.5 Inch 5.56 NATO AR-15 Pistol Upper Build Kit with Front Sight Base Barrel and Six Prong Muzzle Brake

The Hyperion AR-15 Pistol Upper Build Kit pairs a black anodized 7075-T6 aluminum AR-15 upper receiver with a 10.5 inch 5.56 NATO front sight base barrel and an M4 carbine length drop-in quad rail handguard. The upper receiver comes with M4 feed ramps, a standard forward assist, and an ejection port door with rod and spring. The barrel uses a carbine length gas system with a fixed A2 style front sight base, a stainless steel gas tube, and a USA made steel A2 front sight kit. A Colt AR-15 delta ring, a black six prong steel muzzle brake, and a black crush washer round out the kit, and BCG and charging handle are not included.

Key Features

• AR-15 upper receiver, 7075-T6 aluminum, black anodized
• M4 feed ramps
• Standard AR-15 forward assist
• AR-15 ejection port door with rod and spring
• 10.5 inch front sight base barrel, 5.56 NATO
• Fixed A2 style front sight base
• USA made steel A2 front sight post, plunger, and spring
• Stainless steel gas tube
• M4 carbine length drop-in quad rail handguard, 7 inch, black
• Colt AR-15 delta ring
• Six prong steel muzzle brake, black oxide and nitride, half inch x 28
• Half inch black crush washer
• BCG and charging handle not included

Perfect For

• AR-15 pistol builders who want a front sight base upper with an aggressive six prong brake in one purchase
• Builders who already have a bolt carrier group and charging handle on hand
• Shooters who want a classic M4 style front end with quad rail accessory space

Upper Receiver with Forward Assist and Ejection Port Door

The upper receiver is 7075-T6 aluminum with a black anodized finish and M4 feed ramps. It comes with a standard AR-15 forward assist. An AR-15 .223 and 5.56 ejection port door with rod and spring is also included. Having these parts with the receiver keeps the upper receiver side covered.

10.5 Inch Front Sight Base Barrel

The barrel is a 10.5 inch 5.56 NATO front sight base barrel that uses a carbine length gas system. It features a fixed A2 style front sight base with a USA made steel A2 front sight kit, including the sight post, plunger, and spring. A carbine length stainless steel gas tube is included. These parts give the barrel a traditional fixed front sight setup.

Drop-In Quad Rail Handguard and Colt Delta Ring

The AR-15 M4 carbine length drop-in quad rail handguard measures 7 inches and comes in black. It offers Picatinny rails on all four sides for lights, lasers, and grips. A Colt AR-15 delta ring is included for the drop-in handguard setup. The quad rail gives the classic front sight base layout plenty of accessory space.

Six Prong Steel Muzzle Brake and Crush Washer

The kit includes a six prong steel muzzle brake in black with a black oxide and nitride finish. It is threaded half inch x 28. A half inch black crush washer is included with the brake. The six prong design gives the front end a bold, aggressive look.

Follow safe handling and manufacturer instructions.

Ensure compliance with all applicable federal, state, and local laws.

BCG and charging handle are not included.

Verify compatibility with your lower receiver and bolt carrier group before use.

Inspect all components before use.