Our Snowpeak T-Rex Bullpup Magazine & Barrel Band... The T-Rex Bullpup 22cal 12 shot Magazine - with our magazine you'll get two more shots compared to the OEM mag plus our mag is way easier to load, smoother feeding and no bent pellet skirts. Our low-profile Big Air Barrel Band helps to stabilize the barrel to the air tube and really helps improves accuracy. The barrel band is precisely engineered to snugly hold the barrel and help avoid POI shifts. It has soft rubber inserts to firmly grip the shroud/air tube and a brass insert and SS screw to easily tighten into position. It's easy to install - with rifle in safe condition - slide the barrel band down the barrel shroud/air tube and position ~1/4" below the "25Mpa Max Pressure" text. Gently tighten the Phillips screw until the halves meet. No need to over-tighten. You'll likely need to re-zero the T-rex after you've installed the barrel band.
We designed the T-Rex mags with a snug friction fit on the barrel to hold it in place. We oversized the grippers a bit to prevent a loose fit and to account for the tolerance we've seen between different rifle barrels and breech wells. You'll need to firmly pop the mag into the breech with your palm the first time. This will allow the grippers to conform to the barrel and after a couple insertions the fit will give a nice easy snap in and work great.