Testing of superlative arms piston system. - Superlative Arms AR15 .750in Solid Adjustable Piston System

So I purchased this to run a 12.5" barrel AR-15 that I have suppressed.I have been using SA bleed off block for years and to incorporate that with this piston system was genius. I installed per instructions and after adjusting to 20 clicks out I have ran over 100 rounds and I have had no malfunctions and my chamber and upper are cleaner than ever. I highly recommend this product for anyone running a supressed AR. I will say that is was difficult to find a hand guard that will fit without any clearance issues. Make sure to measure your hand guard and compare to the dimensions that Superlative Arms provides.They have a list of forearms that will clear the system. My only cons are I wish they included a actual bolt head with the BCG. I used a JP mil spec with the gas rings removed for mine. I would say it's worth the investment for a new handguard or if your building an AR use this piston system. I've already back ordered two more from SA for future builds. Another great product from SA.