AR-40 4.5" SLICK SIDE UPPER RECEIVER PISTOL BUILD KIT W/4" M-LOK HANDGUARD- BCG-LPK & Pistol Tube Kit
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| Specs | |
| Barrel Length: | 4 " |
| Caliber: | 40 S&W |
| Twist Rate: | 1:16 |
| Gas System: | BLOWBACK |
| Muzzle Thread: | 5/8X24 |
| Muzzle Device: | A2 Flash Hider |
| Bolt Carrier Group | Included |
| Receiver Material: | Forged 7075 T6 Aluminum |
| Charging Handle: | 6061-T6 Aluminum |
| Buttstock: | Pistol Tube |
| Buffer: | 7 oz. |
| Grip: | Standard A2 |
| BCG Finish | Nitride |
| Specs | |
| Barrel Length: | 4" |
| Caliber: | 40 S&W |
| Gas System: | BLOWBACK |
| Muzzle Thread: | 5/8X24" |
| Bolt Carrier Group | Included |
| Receiver Material: | Forged 7075-T6 Aluminum |
| Charging Handle: | 6061-T6 Aircraft Aluminum |
| Buttstock: | Pistol Tube |
| Buffer: | 7 ounce |
| Grip: | A2 |
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