Sons of Liberty Gun Works M4-L89 Upper Receiver Group Upper Receiver 5.56
Shop Sons of Liberty Gun Works ProductsSons of Liberty Gun Works | U-M4L89-556-145-ASR | MPN: U-M4L89-556-145-ASR | UPC: 657628673026 | Black | .556 NATO | Barrel: 14.5" pinned (16" OAL) | 13.75" L89 Handguard
Forged upper receiver. 13.75" L89 7-sided handguard with 7-sided M-LOK slots. ASR flash hider. Drivelock barrel nut system. Integral QD sockets at barrel nut on both sides. Liberty Fighting Barrel.
Specifications:
- Brand: Sons of Liberty Gun Works
- Model: M4-L89 Upper Receiver Group
- MPN: U-M4L89-556-145-ASR
- UPC: 657628673026
- Category: Upper Receivers/Conv Kits
- Type: Upper Receivers
- Caliber: .556 NATO
- Barrel Length: 14.5" pinned (16" OAL)
- Overall Length: 16" OAL
- Finish: Matte
- Color: Black
- Handguard Length: 13.75"
- Handguard Type: L89 7-sided
- Handguard Interface: 7-sided M-LOK slots
- Barrel: Liberty Fighting Barrel
- Muzzle Device: ASR Flash Hider
- Barrel Nut System: Drivelock barrel nut system
- QD Mounts: Integral QD sockets at barrel nut on both sides
- Upper Receiver Material: Forged
Technical Specifications
| Caliber | 556NATO |
|---|---|
| Finish | Matte |
| Manufacturer | Sons of Liberty Gun Works |
| Model | U-M4L89-556-145-ASR |
| SKU | R1385817 |
| UPC | 657628673026 |
| Color | Black |
| Availability | In Stock |
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Shipping & Returns
Shipping Information
- Orders typically process within 1-2 business days
- 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 (329) 227-0508 or submit a question for assistance with shipping or returns.
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