Primary Weapons Systems MK109 MOD 1-M 300 AAC BLACKOUT 9.75In
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Primary Weapons Systems | MK1-M1U-300BLK-9 | MPN: MK1-M1U-300BLK-9 | UPC: 811154033451 | Black / Anodized | Caliber: 300 AAC BLACKOUT | Overall Length: 9.75" | Weight: 4.38 lbs | Frame Material: T6 7075 Forged | Product Type: Upper Receiver
PWS long-stroke piston system. Free-float PWS handguard (6.9") with PicLok / M-LOK interface. Adjustable gas.
Specifications:
- Brand: Primary Weapons Systems
- Model: MK109 MOD 1-M (MK1-M1U-300BLK-9)
- MPN: MK1-M1U-300BLK-9
- UPC: 811154033451
- Category: AR Stocks, Forends, Forearms
- Product Type: Upper Receiver
- Caliber: 300 AAC BLACKOUT
- Finish: Anodized
- Color: Black
- Frame Material: T6 7075 Forged
- Overall Length: 9.75"
- Weight: 4.38 lbs
- Operating System: PWS long-stroke piston system
- Upper Type: PWS proprietary piston upper
- Gas System: Adjustable gas
- Handguard: PWS 6.9" free-float PicLok / M-LOK handguard
- Forward Assist: Yes
- Barrel Twist Rate: 1:8
- Muzzle Velocity: 2264 fps
- Muzzle Device: PWS Triad 30
- Compatibility: AR-15
Technical Specifications
| Caliber | 300 AAC BLACKOUT |
|---|---|
| Barrel Length | 9.75" |
| Action Type | Piston |
| Finish | Anodized |
| Weight | 4.13 lbs |
| Manufacturer | Primary Weapons Systems |
| Model | MK1-M1U-300BLK-9 |
| SKU | R987033 |
| UPC | 811154033451 |
| Color | Black |
| Availability | Out of Stock |
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Shipping & Returns
Shipping Information
- Ships via major carriers with tracking
- Tracking information provided for all orders
- Shipping costs calculated at checkout based on weight and destination
Return Policy
- 30-day return policy on accessories and non-firearms
- Items must be unused and in original packaging
- Contact us for return authorization before shipping items back
- Original shipping costs are non-refundable
Questions?
Contact us at 7048882913 or submit a question for assistance with shipping or returns.
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