First up...the kits are a blast to play with. I'm currently running a Spikes kit in my 11.5" 1/7 SBR w/ and w/o a suppressor. Before that, I literally wore out a Ciener kit in a 20" 1/7 rifle. That rifle will still shoot MOA with 5.56 (if and when I can do my part) and I've never had a problem with the guns running 5.56 after shooting .22 and a quick clean at the range. The only time I encountered a problem with one of the kits was due to one of these:
Ammo - Remington Golden Bullets for example would never run in either kit. CCI, Aguila, Federal, & Winchester all run fine. Of course if you shoot the cheaper value pack ammo you're going to run into the occasional dud. Oh well, it's $20 per 500.
Recoil Spring - It can require adjusting the length to match the ammo and barrel length combination in order to provide the correct back pressure to operate the kit properly. Likewise, I've worn these out after thousands of rounds and had to replace them to keep the kit running.
Filth - These things are blow back operated .22s; they get nasty and require a quick wipe down occasionally (like any other semi .22 I've played with) if you want to put hundreds of rounds downrange in a single outing. Running the kits dry or with minimal lube has been much better for reliability.
Like I said, the kits are a blast and a great way to practice cheap. I've found that a 200m 5.56 zero works out to a rough 25y .22 zero. IMHO, these kits are one of the best toys to invest in for your AR.
Ammo - Remington Golden Bullets for example would never run in either kit. CCI, Aguila, Federal, & Winchester all run fine. Of course if you shoot the cheaper value pack ammo you're going to run into the occasional dud. Oh well, it's $20 per 500.
Recoil Spring - It can require adjusting the length to match the ammo and barrel length combination in order to provide the correct back pressure to operate the kit properly. Likewise, I've worn these out after thousands of rounds and had to replace them to keep the kit running.
Filth - These things are blow back operated .22s; they get nasty and require a quick wipe down occasionally (like any other semi .22 I've played with) if you want to put hundreds of rounds downrange in a single outing. Running the kits dry or with minimal lube has been much better for reliability.
Like I said, the kits are a blast and a great way to practice cheap. I've found that a 200m 5.56 zero works out to a rough 25y .22 zero. IMHO, these kits are one of the best toys to invest in for your AR.
