Tech. Specs. Tech Specs SRS-A1 Line-up16" Covert20" Sport22"26"ColorsBlackFlat Dark EarthOlive DrabHandRight hand/Left handSize>= 675mm>= 764mm>= 859mm>= 980mmWeight>= 2.98 Kg>= 2.82 Kg>= 3.20 Kg>= 3.32 KgBoltBackward-Pulling BoltStainless Steel cylinderMonolythic steel bolt head6061 T6 Aluminium Alloy pistonSilent piston headSteel piston endAPS 13mm (OD) springs41cc air volumeBelow 1 Joule availableMonolithic receiverCNC 6005 T5 Aluminium Alloy>= 1 KgQuick barrel change attachment system patented by Desert Tech LLCCNC engraved unique serial numberOuter barrelCNC 6005 T6 Aluminium AlloyTempered profile8.56 mm inner diameterNo spacers neededM14 x 1 CCW ThreadCNC 6061 T6 Aluminium Alloy Light Bull profile 20 mm inner diameter Barrel spacers provided M24 x 1 ThreadCNC 6005 T6 Aluminium AlloyTempered profileDeep fluting8.56 mm inner diameterNo spacers neededM14 x 1 CCW ThreadCNC 6005 T6 Aluminium Alloy Tempered profile Deep fluting 8.56 mm inner diameter No spacers needed M14 x 1 CCW ThreadInner barrelBrass6.05 x 420mmAEG TypeBrass6.05 x 510mmAEG TypeBrass6.05 x 578mmAEG TypeBrass6.05 x 680mmAEG TypeMuzzle BreakThread protectorM14 x 1 CCW ThreadThread protectorM24 x 1 Thread.30 QDM14 x 1 CCW Thread.338 LMM14 x 1 CCW ThreadDTSS Silencer CompabilityWith .30mm & .338mm QD Muzzle Break (not included)Drop inDrop inWith .30mm & .338mm QD Muzzle Break (not included)Hop-upTwo points adjustment6061 T6 Aluminium AlloyAEG type hopup rubberQuick change systemAbility of quick barrel switchRailed HandguardCNC 6005 T6 Aluminium AlloyM38 x 2 ThreadRifle stockFiber reinforced nylonButtpad extensionFiber reinforced nylonMonopodCNC 6061 T6 Aluminium AlloyDesert Tech LCC patented replica(not included with the sport version)TriggerCNC 6061 T6 Aluminium AlloyAdjustable position & preloadCNC 6061 T6 Aluminium AlloyAdjustable preloadCNC 6061 T6 Aluminium AlloyAdjustable position & preloadCNC 6061 T6 Aluminium AlloyAdjustable position & preloadMiscNo zinc alloy10.9 steel screws