HK51 is an unofficial Heckler & Koch firearm that was designed by an American gunsmith Bill Fleming in the late 1980s, by utilising existing G3 and HK91 parts. It's invention was in direct response to the British SAS and SBS Special Forces request for a compact Sub-Machine Gun sized firearm that can still fire the full powered cartridge. Although it did saw very limited service and adopted as the MC51 (Machine Carbine 51), the firearm was very quickly replaced by the HK53 due to the sheer amount of concussion and muzzle blast it produces. The HK51 still sees itself as a fun range toy by many gun enthusiasts. Clone version are also currently being produced by PTR Industries under the name PTR 91 PDWR.

In a nutshell it's a cutdown G3, or in the otherway around a dummy T H I C C MP5.This gun was best described by Ian McCollum (aka Gun Jesus) from Forgotten Weapons as a Full Auto Flashbang Dispenser.

This purchase pack will contain the HK51 plus a few accessories to go with the gun.*Please note that proportions may not be 100% correct. This model isn't made for 3D printing, it's a low poly asset made for use in games. *

Features:

• x1 HK51
• X2 Handguards (MP5 Wide Handguard, SureFire 628 Handguard)
• x2 Magazines with Bullets (G3 Steel Mag, X-Products 50 round Drum Mag)
• x1 MFI HK Rail Optic clamp

Skins:

• X-Products Drum Mag: Black, OD Green.

Model Information:

• Model: FBX and OBJ formats
• Normal Map: DirectX and OpenGL (both included)
• Materials: 4K PBR (AO, Albedo, Roughness, Metalness, Normal Map), MFI Rail in 2k .PNG format 16 bits.
• 6 Assigned Materials on 1 UV map each: (hk51_upper, hk51_lower_handguard, g3_steel_mag, mfi_optic_rail, x_products_50_drum_mag, surefire_628_handguard)
• Rigged on a skeleton for animating (FBX, Blend file)
• Unrigged version available in OBJ format
• Mesh parts separated
• Blender files included. (ver 2.79+), (ver 3.6+)