.300 Blackout Rifle Kit For The DIY Gunsmith
- If you’re building your own rifle kit is a great option.
- The upper and lower receivers in this rifle kit are black hardcoat anodized.
- All AR-15 parts offered online at Thunder Tactical are machined to mil spec tolerances.
- Proper cycling is ensured because we test fire all fully assembled uppers.
This AR-15 rifle kit for sale is great for the gunsmith looking for a little bit of a longer barrel. The AR-15 parts included in the assembled .223/5.56 upper include the following:
.300 Blackout 12″ Barrel Phosphate,
- 12″ Quad Rail
- Carbine Length Gas Tube
- Low pro gas block
- Forward Assist
- Ejection Port Cover
- Charging Handle
- M-16 Bolt Carrier Group
- A2 Flash Hider with Crush Washer
Also included in this rifle kit are an 80 percent lower receiver, a six-position stock with buffer, buffer tube, and spring, and a lower parts kit to complete your lower. Keep shopping our gun parts online to discover what else we have to offer among our selection of pistol and rifle parts.
- Available assembled or unassembled
- Black hard coat anodized upper & lower
Anodize Color Options
- This kit comes in the following colors:
- Black Anodized
- Green Anodized……….. extra
- Red Anodized………….. extra
- Blue Anodized………….. extra
- Bronze Anodized……….. extra
- Purple Anodized……… extra
- Pink Anodized……… extra
- *This is a not an FFL item. This is not a complete receiver and still requires machining to be done.