Gunsmith Bros Stainless Steel .45 ACP 5.1" Outer Barrel For Marui TM Hi-Capa 5.1 GBBP Series Magazine Catch This steel Bolt B is

This steel Bolt B is 23g heavier than the original part

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- Supports green tracer BBs and water BBs

and improve perception and communication in the noisy

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Gunsmith Bros Stainless Steel .45 ACP 5.1" Outer Barrel For Marui TM Hi-Capa 5.1 GBBP Series Magazine Catch This steel Bolt B isStainless Steel Constructed Outer Barrel . 45 ACP Type 5. 1" Length Enhanced Durability & Stability 2 Color Options Compatible With Tokyo Marui TM Hi Capa 5. 1 GBBP Series Package Included: Gunsmith Bros Stainless Steel . 45 ACP 5. 1" Outer Barrel For Marui TM Hi Capa 5. 1 GBBP Series