WE APACHE SD6 SD3 (Retractable Stock)? 90mm in Height? 870mm in Length? 265mm in Width? Fires Safe/Seme/Fully Automatic? Green Gas Powered? 330mm Barrel Length? 45 Round Magazine? Adjustable Hop-Up? 2855 Grams in Weight? Retractable Stock – Gas Blow Back? Adjustable Hop-Up – Fully / Semi-Auto / 3 Round Burst Shooting Mode – Metal Made Aiming sights are fully adjustable, The rear sight has got four positions – Adjustable HOPUP System – Ambidextrous fire selector lever that is user-friendly to both left and right-handed – Sling mount can be installed with any single point tactical sling