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11.5″ Lightweight 1-7 Twist Complete Upper Barrel Receiver Assembly
$414.99
The Luth-AR 11.5″ 1-7 Twist Lightweight Complete Upper Barrel Assembly
This 11.5″ complete upper barrel assembly is a lightweight and durable option for your next build. With a 1-7 twist rate, it is optimized for stabilizing a wide range of bullet weights. The assembly includes a barrel, handguard, gas block, and gas tube, making it easy to install and get to the range. This is a perfect choice for shooters looking for a high-quality and lightweight barrel at an affordable price.
Starts with our 11.5″, 5.56mm Lightweight barrel made from 4150 Chrome Molly with a 1-7″ 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  9″ Palm Handguard® with choice of KeyMod, MLOK® slots and a Picatinny top-rail.
*Disclaimer: These parts are replacement parts for existing and legally owned NFA firearms. Installing a barrel under the legal length may constitute a violation of Federal or State law. All NFA requirements must be followed.
Free shipping on orders over $175.00! (*Retail Orders Only)
- Made in America
- Secure Checkout
Description
The Luth-AR 11.5″ 1-7 Twist Lightweight Complete Upper Barrel Assembly
Includes:
- Palm Handguard® – Available Options
- 9″ KeyMod with Barrel Nut
- 9″ MLOK® with Barrel Nut
- BL-11-7 – 11.5″ Lightweight Barrel
- FTT-EA1 – A3 Upper Receiver Assembled
- BC-A-223 – Fully Assembled Bolt Carrier – .223/5.56mm
- BL-04A – Carbine Gas Tube
- GB-LP750 – Gas Block .750
- 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:
Lightweight 11.5″ Barrel
- Available in 11.5″
- 5.56 mm
- 4150 Chrome Moly
- Threaded Barrel — Thread Pitch 1/2 x 28
- Gas Block Diameter .750
- Gas Tube Length — Carbine
- 1-7 RH Barrel Twist
- 6 Lands and Groves
- M4 Feed Ramp
- Button Broached
- Not chrome lined
SKU: BA-11-7K Â KeyMod
SKU: BA-11-7M  M-LOK®
Additional information
| Application | AR15 |
|---|---|
| Caliber | 5.56 mm |
| Style | A3 Flattop |
| Feed Ramp | M4 |
| Slot Style | KeyMod, MLOK™, Smooth |
| Lands and Grooves | 6 |
| Thread Pitch | 1/2 x 28 |
| Threaded | Yes |
| Material | 4150 Chrome Molly |
| Twist | 1-7 |
| UPC Code | 812058031901 |
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