18″ MARK12 Complete Upper Barrel Receiver Assembly
$459.95
The Luth-AR 18″ Mark12 Complete Upper Barrel Assembly
The 18″ MARK12 complete upper barrel receiver assembly is an excellent choice for precision long-range shooting. The barrel is made of 4140 Chrome Molly, providing accuracy and durability. The 1-9 twist rate is optimized for stabilizing heavy projectiles. This assembly includes a Picatinny rail for mounting optics and accessories. Easy to install and use. Designed for serious shooters, this assembly is built to provide exceptional performance and reliability.
Starts with our 18″, 5.56 Mark12 barrel made from 4140 Chrome Molly 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.
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- Made in America
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Description
The Luth-AR 18″ Mark12 Complete Upper Barrel Assembly
Includes:
- HG-V-15K – Palm Handguard® – Vented 15″ KeyMod or M-LOK® Slots with Barrel Nut
- BAA3-M12 – 18″ Mark12 Barrel
- FTT-EA1 – A3 Upper Receiver Assembled
- BC-A-223 – Fully Assembled Bolt Carrier – .223
- BL-04 – Standard Gas Tube
- GB-LP750 – Gas Block .750
- UR-19 — Charging Handle
- BL-06-A2 — A2 Flash Hider
- Not chrome lined
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″ Mark12 Barrel
- 5.56
- 4140 Chrome Moly
- Threaded Barrel — Thread Pitch 1/2 x 28
- 1-9 RH Barrel Twist
- 6 Lands and Groves
- M4 Feed Ramp
- Button Broached
- Not chrome lined
SKU: BAA3-M12 — KeyMod
SKU: BAA3-M12-M — M-LOK®
Additional information
| Application | AR15 |
|---|---|
| Caliber | .556 mm |
| Slot Style | KeyMod, MLOK™, Smooth |
| UPC Code | 812058030188 |
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