» 6.01mm 7075 Tight Bore
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Ultimate 229mm Tight Bore 6.01mm Barrel - MP5 / AK Beta
Model#: MB-UT229 -
Ultimate 247mm Tight Bore 6.01mm Barrel - G36C / SIG552
Model#: MB-UT247 -
Ultimate 300mm Tight Bore 6.01mm Barrel
Model#: MB-UT300 -
Ultimate 363mm Tight Bore 6.01mm Barrel - M4/SR16/SG551
Model#: MB-UT363
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Ultimate 455mm Tight Bore 6.01mm Barrel - AK47
Model#: MB-UT455 -
Ultimate 509mm Tight Bore 6.01mm Barrel - M16 / M249 / AUG
Model#: MB-UT509 -
Ultimate 590mm Tight Bore 6.01mm Barrel - PSG-1 Plus
Model#: MB-UT590 -
Ultimate 509mm Tight Bore 6.01mm Barrel - PSG-1
Model#: MB-UT650
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Ultimate 455mm Tight Bore 6.01mm Barrel - Echo1 Sniper Rifle ASR
Model#: UT455 ASR