Garrow Firearms Development 17hmr locked bolt gas operated AR upper
I will put pictures in here shortly, however right off the bat I want to say, WOW! Love this upper!
You can use any AR 15 lower, the magazines are same size as a 20 rnd magazine, however, take only 10 rounds. So California and other states legal!
Extremely accurate, have been having minor issues with the cci and federal fmj rounds, however, much of this is I think due to the case lots themselves.
Have run 5 different loadings (50+ rounds of each) from Hornady through Federal and CCI -
Accuracy is extremely good, stacked rounds on top of each other at 50 yards, and well under an inch at 100 yards - best groups were with the Hornady 17 grn vmax and the cci version as well as the various hollow point loadings. All minimum 5 round groups, most 10 rounds.
Will be updating with pictures, video links and more as I collate data, so at the moment, it has been better (reliability and accuracy than the Anderson upper and the out of the box Savage I have.)
Again, check out their site, and I will update more as I get it put together -trying to get full video, pictures and verify everything.
Fun action, smooth, no discernable poa shift when shooting! Not huge with any rimfire but, still very nice!