This 18″ fluted bull barrel complete upper receiver assembly is the perfect choice for precision shooting. The fluted bull barrel profile provides adds strength for stability, reducing recoil and increasing accuracy. The barrel is made of high-quality stainless steel, providing durability and longevity. The 1-9 twist rate is suitable for stabilizing heavy projectiles. This is an excellent option for shooters who want a heavy barrel with precision shooting in mind.
Starts with our 18″, .223 caliber fluted bull barrel made from 416 SST with a 1-9 twist mated to our A3 Flattop receiver which includes our bolt carrier, charging handle, forward assist and ejection port cover. The upper is then topped off with our lo-profile gas system and our ergonomic 15″ Palm Handguard® with KeyMod or M-LOK® slots and a Picatinny top-rail.
Description
The Luth-AR 18″ Fluted Bull Barrel Complete Upper Barrel Assembly
Includes:
HG-V-15K – Palm Handguard® – Vented 15″ KeyMod or M-LOK® Slots with Barrel Nut
BL-B18FT – 18″ Bull Barrel, Fluted, Threaded 416 SST
FTT-EA1 – A3 Upper Receiver Assembled
BC-A-223 – Fully Assembled Bolt Carrier – .223
BL-04 – Rifle Length Gas Tube
GB-LP936 – Gas Block .936
UR-19 — Charging Handle
BL-06-A2 — A2 Flash Hider
Upper Specs:
7075-T6 Forging
Hard coat anodize Black
Bolt Specs:
Bolt: Carpenter 158 steel
Extractor: 4140 Alloy steel
Army Spec Heat Treatment
Manganese Phosphate
Bolt Carrier Specs:
Carrier: 8620 steel
Cam pin: 4340 Alloy steel
Carrier key: 4130 Alloy steel
Army Spec Heat Treatment
Manganese Phosphate
Barrel Specs:
18″ Fluted Bull Barrel
.223 Rem
416 SS
Threaded Barrel — Thread Pitch 1/2 x 28
Gas Block Diameter .936
Gas Tube Length — 16″ Carbine, 18″, 20″, and 24″ are Rifle
1-9 RH Barrel Twist
6 Lands and Groves
M4 Feed Ramp
Button Broached
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