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

Price: $94.99 — In stock at 1 retailer.

G P WA M4 GBB Negative Pressure Roller Bolt Carrier (Chromic Coating, Set B) Inside (PA) / Outside (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 SKU GP-WP205B Item Weight (gram) 205 Major Color Silver Built Material Inside (PA) / Outside (Chromic Coating) Manufacturer G P Disclaimer NOTES: Self-Installation Modification (e.g. Sanding) is required. Please consult your local gunsmith / expertise for installation advis