Quantity in Stock: AR-9 4.5" Complete Upper Receiver Build Kit - 4.25" M-LOK Handguard
This Complete Upper Build kit is comprised of the following items and comes with everything that you need to complete an upper.
- 4.25" Handguard
- Barrel Nut & Screws
- True Slick Side 9MM Upper
- 9MM BCG
- Mini Flash Can - 1/2x36 TPI
- Standard Charging Handle
- 4.5" 9MM Barrel
|
Barrel
|
Specifications
|
|---|---|
| Caliber | 9mm |
| Length | 4.5 |
| Material | 4150 Chrome Moly Vanadium |
| Profile | Straight |
| Finish | QPQ Corrosion Resistant |
| Gas System Length | Blowback |
| Gas Block Journal | N/A |
| Dimpled? | No |
| Twist Rate | 1:10 |
| Muzzle Thread | 1/2x36 TPI |
| Weight | 8.3oz |
| Barrel Extension | Integrated |
| Target Crown | 11 Degree |
*These barrels have no Index pin or dedicated feed ramp.
All NFA/ATF Rules Apply
Depending on your state and local laws, you could use this barrel with a lower receiver that is a Registered SBR, or Pistol. Possession of this barrel along with a Non-NFA lower receiver may be Prohibited. We are not lawyers and the above information is not legal advise. Make sure you understand the most up to date federal, state and local laws before proceeding with this product.
