FeaturesFull metal slide and upper frame w/ front and rear cocking serrationsAW Custom nylon fiber reinforced grips; Stippled and radiused grips improve shooters grip and comfortFiber optic front and rear sight improve targeting ability in low light situationsShort stroke recoil spring improves cyclic rateEnhanced magwell facilitates reloadingFrame mounted accessory railFull auto select fire w/ superior performanceSkeletonized trigger and hammerArmorer Works Custom strives to provide Airsofters with high quality guns that come directly from the factory already upgraded. Armorer Works does not simply change the finish of the gun and label it as "custom". Each gun that leaves Armorer Works has been modified with enhanced features that truly improve the comfort, performance and efficiency of the gun as well as cosmetic upgrades that are not generally seen in an out of the box gun. Custom finishes, improved grips, sights and ergonomic modifications as well as improved performance and gas efficiency are hallmarks of the dedication Armorer Works puts into providing their clients with the highest quality Airsoft products possible.   Manufacturer: AW Custom FPS Range: 350-360 Color: Two-Tone Specifications: Dimensions: 235mm x 143mm Muzzle Velocity: 350-360 FPS (Measured w/ 0.20g BBs and Green Gas) Magazine: 30+1 rounds. Compatible with KJW, WE, TM, and other similar Airsoft HICAPA Series Magazines Gas Type: Green Gas, Red Gas, Propane Firing Mode: Semi Automatic, Full-Auto, Safety System: Gas Blowback Hopup: Yes, Adjustable Package Includes: Gun, Magazine, and Manual *GBB 101: It is a good idea to let your magazine return to regular temperature before using it again for optimized performance. We recommend spare magazines for best performance on all GBB's.