G&P WA M4 GBB Negative Pressure Roller Bolt Carrier (Set B)

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US$99.99

Your price: US$94.99

SKU: GP-WP204B

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G&P WA M4 GBB Negative Pressure Roller Bolt Carrier (Set B)
Inside (PA) / Outside (Gold Chromic Coating)
For Bomber GBB CNC Metal Body ONLY
Come With 2x Polymer Nozzle Set ( Negative pressure operated blowback system )
Design For Replace The Original Bolt Carrier

NOTES: Self-Installation & Modification (e.g. Sanding) is required. Please consult your local gunsmith / expertise for installation advise.

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NOTES: Self-Installation & Modification (e.g. Sanding) is required. Please consult your local gunsmith / expertise for installation advise.