BCMGUNFIGHTER Assembled Upper Receiver - BCM4-UR-M4
In stock
The Bravo Company Manufacturing M4 Upper Receiver Assembly is professional grade weaponry. Precision machined to MIL-SPEC from a 7075-T6 aluminum forging provides this upper with exceptional strength. The inside diameter of the receivers threaded bore has been slightly undersized to provide a tighter fit with the barrel extension, resulting in a more accurate rifle.
NOTE: Please use a heat gun or hair dryer to warm up threaded bore of receiver if barrel extension is too tight.
Features:
- Laser engraved T-markings
- No BCM logo etched on the rear of the rail
- Marked BCM4 over the gas tube port
- 7075-T6 aluminum
- Factory assembled forward assist, and ejection port cover
- Hardcoat Type III, Class 2 anodized
- Dry film lube on interior bore per MIL-SPEC
- Made in the U.S.A.
| Weight | 11.008 oz |
|---|---|
| Finish | Anodized, Black |
| Forward Assist | Factory Installed |
| Port Door / Dust Cover | Factory Installed |
| Receiver Material | 7075 Aluminum |
| T-Marks | T-Marked |
| Feed Ramps | M4 |
| MPN | BCM4-UR-M4 |
| UPC | 855877004442 |
Compliance
NFA (National Firearms Act) compliance is crucial for legal ownership and transfer of regulated firearms and accessories like short-barreled rifles, suppressors, and certain types of ammunition, ensuring adherence to federal regulations to avoid legal penalties and ensure responsible firearm ownership.
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United States
BCM Upper
Great service super fast shipping best 💯
United StatesBest upper receiver money can buy hands down.
You will need to thermal fit the barrel into the upper receiver. I just use a propane torch on barrel pocket for 15-25 seconds then slip the barrel in. Make sure you push it in and hold it for 30 to 60 seconds as it cools. Every upper I have done like this will outshoot any non-thermally fitted upper I have shot or owned. I have even replaced other receivers that shot fine and still increased the accuracy. I hope this helps and don't be tempted to waste your money on lesser receivers over a BCM.
USBCM upper
I signed up for email notifications for available stock-which have been accurate and timely. All of my 556 builds have BCM upper receivers. The quality is outstanding, tolerances super tight. In every build I have put together, I have had to freeze the barrels and heat the BCM receivers to get the barrel seated properly in the lug. That has made for some ridiculous accuracy and very solid upper receiver construction. As always the team of people at AR15 discounts provide the highest level of customer service.
US556 build
Excellent customer service. Fast shipping,good prices. Very satisfied and looking forward to next build.
