lazyengineer Wrote:You're going to love it. I would suggest taking a look at the TEAM Grendel bolt sold here by BFT. Of all things Grendel, the bolt system is its biggest Beowulf. Those lugs are weaker and strained to the limit. When made right, that limit still works, but the margin of error is low, unlike with .223. It won't kaboom, but lugs and extractors break in Grendels more than typical - especially if not new and to spec. The BFT group buy Grendle bolts aren't that expensive, and have relief cuts on every lug, that I like.
I haven't broken a Grendel bolt yet, but I've broken at least 3 extractors so far. I'm starting to lose count. (But not BFT'S Team Extractor yet!)
Thank you for the bolt suggestion, I will definitely get one.
Do these bolts require a compatible barrel extension? For high power competition application we use these barrel extensions (BE). I used the same one my Grendel. Though these are longer by 0.300, and the threads are 20 TPI, instead of 16, they are still compatible with M16 GI bolt dimensions.
https://www.whiteoakarmament.com/competi...on-m4.html
These BEs are ever so slightly larger in OD compared to the original ones. When coupled to a Bravo Company upper, I have to heat up the receiver face to slide the extension in, thus providing a tight fit without any heroics like Locktite to fill the slop in the BE to upper fit.