AR15AHOLIC 2 Posted January 26, 2018 as the title states anyone had major problems with any kits, which is best or better than other and the ammo best for using in the kit itself. looking for a kit for the female (she doesn't like recoil) and just for the cheap ammo usage when upstate. Quote Share this post Link to post Share on other sites
T Bill 649 Posted January 26, 2018 You can go with a complete 22LR upper or a Bolt replacement kit. Be advised the twist rate on a 22LR is 16:1 while a AR is usually 1:9 or 1:7. This will have an issue with accuracy. CMMG has three or more flavors of kits, tactical Solutions used to have one. Some may not feature a Last Round Bolt Hold Open option. I have used a CMMG, TacSol, and have the Air Force version from the 80's I believe. All seem to work fairly well. The usual FTF and FTEs, nothing terible. I prefer to just shoot my 10/22s instead. Quote Share this post Link to post Share on other sites
High Exposure 5,664 Posted January 26, 2018 This is the best option I have found: https://www.smith-wesson.com/firearms/mp-15-22-sport Great little gun. Runs well on any full power 40gr copper jacket ammo. 1 Quote Share this post Link to post Share on other sites
WhiskeyTangoFoxtrot 358 Posted January 26, 2018 I’ve tried the bolt and dedicated upper (Ciener/Kuehl) which is basically the same design everyone uses. After so many rounds, the fouling from the 22lr rounds causes my set-up to be a jam-o-matic. I would stick with dedicated 15-22 given the price differential. 1 Quote Share this post Link to post Share on other sites
Screwball 483 Posted January 26, 2018 I have a Spikes .22 upper, and used the chamber adapter from their’s on a CMMG kit. Very happy with the outcome, as it has a Lothar Walther barrel that can shoot the nuts off a fly. However, they were pricey when they offered them.In regards to a conversion, you have a 5.56mm AR already? If so, and just for limited use, I’d just get a CMMG conversion kit that utilizes your upper.Two heads up... don’t shoot a ton of .22, then go over and shoot 5.56mm right after. Lead build up will need to be cleaned, but no idea on if the lead moves up into the gas block/tube. Never had to deal with it, so never looked into it (would think just the barrel, but something to look into).Second, if you have a forward assist, opt for the kit that has the bolt insert to work with it. The forward assist on a 5.56mm isn’t something I put down as hugely needed (all my ARs have them, but because they came configured as such), but on a dirty .22, it is such a nice thing to have. I’d also say get the CMMG anti-jam charging handle. My Spikes came with a standard charging handle... you will love not having to get a case out from between the charging handle/bolt. Quote Share this post Link to post Share on other sites
raz-0 1,259 Posted January 26, 2018 either some flavor of sw-22, or a nordic/jp dedicated upper. I've got a nordic upper. Don't think they make them anymore. runs like a top and very accurate. Quote Share this post Link to post Share on other sites
AR15AHOLIC 2 Posted January 26, 2018 1 hour ago, High Exposure said: This is the best option I have found: https://www.smith-wesson.com/firearms/mp-15-22-sport Great little gun. Runs well on any full power 40gr copper jacket ammo. geezz tahts cheap, anywhere around north nj i can get a hand on one of those? 1 Quote Share this post Link to post Share on other sites