Sons of Liberty Gun Works M4-L89 Upper Receiver Group Upper Receiver 5.56
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Sons of Liberty Gun Works | M4-L89 Upper Receiver Group | MPN: U-M4L89-556-145-PB | UPC: 657628673033 | Black Matte | Caliber: 5.56 NATO | Barrel Length: 14.5" pinned (16" OAL) | Handguard: 13.75" L89 | Muzzle: Plan B Flash Hider
L89 seven-sided handguard with 7-sided M-LOK slot pattern. Drivelock barrel nut system with integral QD sockets at the barrel nut on both sides.
Specifications:
- Category: Upper Receivers/Conv Kits
- Category Code: 41
- Type: Upper Receiver Group
- Manufacturer: Sons of Liberty Gun Works
- Model: M4-L89 Upper Receiver Group
- MPN / Part Number: U-M4L89-556-145-PB
- UPC: 657628673033
- Caliber: 5.56 NATO
- Barrel Length: 14.5" pinned (16" overall length)
- Overall Length: 16" OAL
- Handguard Length: 13.75" L89
- Handguard Type: L89 7-sided rail
- Rail Pattern: 7-sided M-LOK slots
- Muzzle Device: Plan B Flash Hider
- Barrel Nut System: Drivelock Barrel Nut System
- QD Sockets: Integral QD's at barrel nut on both sides
- Finish: Matte
- Color: Black
- Compatibility: Fits most mil-spec small parts
Technical Specifications
| Manufacturer | Sons of Liberty Gun Works |
|---|---|
| Model | U-M4L89-556-145-PB |
| SKU | R1385820 |
| UPC | 657628673033 |
| 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 502-272-4859 or submit a question for assistance with shipping or returns.
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