Mix and match calibers between 5.56, 300 Blackout, 7.62x39, 350 Legend, 6.5 Grendel and 450 Bushmaster
Please refer to the individual rifle listings for exact specs of each file.
All calibers share the following specs in common:
Adjustable Gas Block
12” or 15” Handguard
A2 Flash Suppressor
Dual Charging Handle
Enhanced Lower Receiver With Upper Receiver Tension Screw
1 Magazine per rifle (Capacity is determined by caliber and by local laws of where the firearms are being shipped to.)
Echo 3 Ordnance 350 Legend barrels were designed utilizing dimensions for Winchester 350 Legend ammunition. We highly recommend only using Winchester brand 350 Legend FMJ and Power Point ammo, as other brand's cartridge dimensions may vary.