Silverback Airsoft announce that they have released their G-Spec Barrek Kit for their SRS Rifle allowing you convert the SRS into a more compact gun... "Do you remember the very short custom we've shown at the IWA 2017 ? It's now available in our catalog . It can accommodate a 309mm inner barrel, or more if you extend it into the silencer.

Take your pick of Fight Club Custom's (also known as PTW Airsoft Works) multibarrel kit... "Newest version of FCC Multi Barrel Kit set (civilian) Black with hard anodize color which allow you to choice whatever length of outer barrel you looking for which 7.5in, 10.5in, 12.5in, 14.5in, 16in, 18in, 20in & 24in. Complete set come with 7.5in Base Outer Barrel, 7in extension, 5in extension, 3in extension and CCW thread inner barrel stablizer.