HK G3A4 3D model

cgtrader

Full assembled model of german infantry rifle G3A4 and 7,62X51 NATO bullet. Model features plastic trigger housing collapsible stock and wide handguard. Model is ideal for weapon mechanic animation, games and visual education purposes. Notification: If you require a low poly model, please contact me here or at 27608166@mail.ru The G3 (Gewehr 3) is a highly reliable 7.62x51mm NATO select-fire battle rifle developed by German armament manufacturer Heckler & Koch (H&K) in collaboration with Spanish state-owned design and development agency CETME (Centro de Estudios Técnicos de Materiales Especiales). G3A4 entered frontline infantry units in 1974. The G3A3 is a selective-fire automatic weapon that employs a roller-delayed blowback operating system. The two-piece bolt assembly consists of a breech and bolt carrier. Two sliding cylindrical rollers hold the bolt in battery by engaging locking recesses in the barrel extension. The breech opens when both rollers are compressed inward against camming surfaces driven by the rearward pressure of the expanding gases upon the bolt head. As the rollers move inward, recoil energy is transferred to the locking piece and bolt carrier which begin to withdraw while the bolt head slowly moves rearward in relation to the bolt carrier. As the bolt carrier clears the rollers, pressure in the bore drops to a safe level, the bolt head is caught by the bolt carrier and moves to the rear as one unit, continuing the operating cycle. The bolt features an anti-bounce mechanism that prevents the bolt from bouncing off the barrel's breech surface. The bolt head locking lever is a spring-loaded claw mounted on the bolt carrier that grabs the bolt head as the bolt carrier group goes into battery. The lever essentially ratchets into place with friction, providing enough resistance to being re-opened that the bolt carrier does not rebound. The spring-powered claw extractor is contained inside the bolt while the lever ejector is located inside the trigger housing (actuated by the recoiling bolt).