Re: ePara TTR
Have one that was a present from my wife. It failed to cycle back to lock after every shot with multiple ammo types and magazines, and accuracy was seriously lacking.
Sent it in, took over three months to get through their repair system including a period of time that I couldn't even get a response or returned phone call.
After getting it back it cycled well and accuracy was on par with any other standard barreled AR. I haven't tried any SMKs through it yet, just milsurp ball, and really didn't get much of a chance to run it through the paces yet.
In all honesty, if it wasn't a gift it would be gone. Overall, the rifle isn't too bad now that it functions and it is a way to get a short overall AR package without running a SBR, but I'm not too impressed in it either. For that amount of money, I expect flawless running and tack driving accuracy, not the same accuracy as my Bushmaster standard carbine that cost 1/3 as much and even worse functioning. I haven't looked into the possibility of getting a better barrel on it yet.
My recommendation, for the amount of money you're probably paying for it, is to cancel the order and get yourself a nice Recon package from Noveske or something similar to it from Specialized Dynamics.