Spartan Licensed GLOCK Blowback Training Pistol - LE / Military

so what makes this military use only? it's just a GBB pistol isn't

AW Custom VX Tactical Pistol Carbine Conversion Kit w/ Spartan

Replacement Magazine Base Seal for Spartan & Elite Force GLOCK

Replacement Plastic Magazine Lip for Spartan Elite Force Licensed

Spartan Licensed Glock 17 Gen 3 CO2 / Gas Blowback Training Pistol

Elite Force Glock 17 Gen4 GBB Blowback 6mm BB Pistol

Spartan / Cybergun Licensed GLOCK 17 Gen 4 CO2 Gas Blowback

ANM CUSTOMS Cerakote Elite Force GLOCK 19 Gen3 GBB Airsoft Pistol

Spartan / Cybergun Licensed GLOCK 17 Gen 4 CO2 Gas Blowback

SOLD Spartan Licensed Glock 17 gen 3

Spartan Licensed GLOCK Blowback Training Pistol - LE / Military

WE M9/M92 Military Spec Gas Blowback Full Metal Airsoft Pistol

Accessorizing the Umarex Glock G19 BB Pistol

Glock 17 Co2 Gas VFC Airsoft Pistol (Gen 4 - Full Blowback

Spartan M&LE Built for Training