US$ 17.00
Adjustable hop-up
Material: S303 Stainless Steel/Brass/Polycarbonate/Aluminum/Acetal
Modification required
Superior performance with very strong blow back job
New Generation USMC M4 Metal Receiver (OD Coating) Category_Hop-Up Enhancement Adjustable hop-upOliver Drab Coating. . This product include HOP UP Set. Use for MARUI M4 Series. Weight: 400 g Material: Aluminum Color: Oliver Drab Item No.: AR 33(U)OD