Sons of Liberty Gun Works M4-L89 Upper Receiver Group, Upper Receiver, 5.56 NATO, 14.5" Barrel with Pinned and Welded ASR Flash Hider (16" OAL), Fits AR-15, Matte Finish, Black, Includes 13.75" L89 Rail, Does Not Include BCG or Charging Handle U-M4L89-556-145-ASR
| UPC | 657628673026 |
| MFG | sons of liberty gun works |
| MFG NUM | U-M4L89-556-145-ASR |
| MODEL | M4-L89 Upper Receiver Group |
| CALIBER | 5.56x45mm NATO |
| BARREL | 14.5" Pinned (16" OAL) |
| FINISH | Matte |
| WEIGHT | 4.125 |
| WEIGHTLBS | 4.13 |
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