Lantac UAR Billet Upper Advanced Receiver - LA00221
Out of stock
The Upper Advanced Receiver is precision machined with an ultra-smooth proprietary bore. At a roughness average of 16 µin, bolt carrier friction is significantly less than a typical upper receiver creating a silkier action. Featuring the SMOOTHCAM system, a domed head, low friction cam pin and blended cam recess have been carefully designed to further reduce friction and wear against internal surfaces. Barrel nut threads, bore, and barrel extension surfaces are all machined in one operation for a perfectly concentric, perpendicular fit to the barrel assembly.
Features:
- Billet 7075-T6 aluminum receiver
- MIL-SPEC Type III Class 2 hardcoat anodized finish
- Ultra-smooth burnished bore
- M4 feedramps
- Blended SMOOTHCAM System
- CP-R360 Domed Cam Pin included
- Weight 8.8 oz
- Made in the U.S.A.
The included Domed Cam Pin is machined from 17-4 PH stainless steel, hardened to H900, polished, and finished in its natural hardened coppery state. The circular head has a flat face machined so that it may be inserted into any bolt carrier without removing the gas key. Two further flats are machined at 90 degrees to the front face, minimizing internal wear to the cam channel.
LANTAC USA manufactures the highest quality accessories for AR-15/M16 pattern rifles. Precision made in the U.S.A., rifles, muzzle brakes and more.
| Weight | 14.08 oz |
|---|---|
| Finish | Anodized, Black |
| Forward Assist | Not Included |
| Port Door / Dust Cover | Not Included |
| Receiver Material | 7075 Aluminum |
| T-Marks | T-Marked |
| Feed Ramps | M4 |
| MPN | LA00221 |
| UPC | 820103732659 |
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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US
Nice upper
As you’d expect, very nice machine work and they include their special cam pin (but for the price, it should be). The internal bore does feel smoother than a run of the mill forged upper, but maybe only a bit smoother than other billet manufacturers. It’s not like you can tell easily. HOWEVER, the pictures online always show the upper having the “LANTAC” milling filled in color and that is not the case. It’s all anodized black. This isn’t a feature, not sure why they have pictures of it like that all over the internet.
