Reviews & Ratings for Superlative Arms AR15 .750in Solid Adjustable Piston System — 18 reviews — Page 1

Item works as expected. Not happy with Optics Planet taking so long to ship the item. Their estimated shipping dates are never correct.

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.

I got this for a 12.5" SBR that was over-gassed like crazy, I didn't think an adjustable gas block would take enough of it out to be shootable as a lefty. I got this kit installed and I'm around 12-14 clicks in on the bleedoff adjustment from the adjustment screw all the way open. The rifle runs like a top, very little gas, surprisingly soft recoil impulse being a piston kit.

Came as expected. This is my second one. Love it. I have had zero issues, none! Highly recommend

Works perfectly, I installed with spring on the op rod no bushing. Put roughly 100 rounds through on a 14.5 to function test and get gas adjustment, primarily suppressed. Less gas in the face, cleaner bcg, less fellt recoil in my opinion. It does seem to cycle faster. Overall great product would definitely recommend.

Only bad thing i can say is that instructions are a little muddy reading through but there are install videos on youtube.

Even though I wasn't able to use this piston system. I purchased it for a 300BLK. I didn't know at the time that Superlative Arms doesn't support the 300BLK. I do however have these installed on all my other ARs and they work perfect.

I have install this kit on my 10.3 Mark 18 clone. Fit and finish is great, but I haven’t really tested I can’t wait to suppress this 10.3 piston build.

Shipping really fast easy to buy decent price very good quality. Everything came in perfect condition have not assembled it yet, but seems to fit the bill for the build

I used this block on a STAG AR. It was originally a piston impingement from the factory. The original gas block and piston finally went to sh!t after 1000’s of rounds and suppressed. I have ran around 300 rounds through this superlative adjustable block with a suppressor, and found that it is really easy to tune, very simple setup.

I have built a few piston upper using this product and have had no issues so far. This is a high quality and you can get this from optics planet at a good price. I saved like $30 on my last one by using the coupon code that they were offering at that time. I highly recommend this product.