SONS OF LIBERTY GUNWORKS M4-89 10.5 300 BLACKOUT UPPER RECEIVER GROUP
- SKU: M489UPPER-10.5-300
- UPC: 785939519129
- Model: M4
![SONS OF LIBERTY GUNWORKS M4-89 10.5 300 BLACKOUT UPPER RECEIVER GROUP](https://cdn33.coreware.com/cache/image-full-69343-4be0be9a76df47bbbfa74e2fc2f2081b.jpg "Sons of Liberty Gun Works M4-89 Complete Upper, 300 Blackout, 10.5" Combat Barrel, 1:7" Twist, QPQ Finish, Black, 9.5" M76 Handguard, MLOK, A2 Flash Hider M489UPPER-10.5-300")
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Sons of Liberty Gun Works M4-89 Complete Upper, 300 Blackout, 10.5" Combat Barrel, 1:7" Twist, QPQ Finish, Black, 9.5" M76 Handguard, MLOK, A2 Flash Hider M489UPPER-10.5-300
| Manufacturer | SONS OF LIBERTY GUN WORKS |
| Model | M4 |
| UPC | 785939519129 |
| SKU | M489UPPER-10.5-300 |
| Width | 3.2500 |
| Length | 30.2500 |
| Height | 2.7500 |
| Weight | 3.5000 |