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12% Off Almost Everything w/ Code: FREEDOM12 or Free Shipping On $99+ w/ Code: 99FREESHIP

AR-15 MBA-3/MBA-4 CARBINE CASTLE NUT

AR-15 MBA-3/MBA-4 CARBINE CASTLE NUT Reviews & Ratings

FITS: The Luth-AR Carbine Lock Ring/Castle Nut for MBA-3 and MBA-4 Carbine Buffer Kits, as well as any Mil-Spec or Commercial Carbine receiver extension.

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5
Nice!
This castle nut worked great. Tightened to 40 ft/lbs and everything is strait and tight. The groves for staking are nice and deep, which allow for strong staking. Don’t be concerned with the low price, this item good to go.
Would you recommend this? Yes, I would recommend to a friend
5
Great quality for little $
For the price I decided to purchase this as an emergency backup part. But the quality was so nice I decided to use it on my build. It's a nice part for a very little investment
4
good value
looks to be well made. threads are slightly loose on mil-spec receiver extensions. Tried it on Aero, Bravo co. and Brownells extensions with same result. Works ok.
3
A bit loose.
Not the best finish but acceptable. The main issue is the nut sits just a bit loose on a BCM buffer tube rather than a snug fit--there is a little wobble back and forth between threads. I give it 3 stars for dirt-cheap pricing.