Polarstar Complete O-ring and Screw Kit for Jack gbbr mag This is the next generation

This is the next generation of gel ball ammo

it's always best to consult a technician for proper installation guidance

3 Piece Rail Set for Gel Blaster Handguard

Type : M4/AR15 type handguard

Made of durable material

Polarstar Complete O-ring and Screw Kit for Jack gbbr mag This is the next generationComplete o ring set for the JACK MP7. Plug screw included. 1x M1. 5 x 6. 5 (Buna 70) Front Outside of Nozzle 2x M1. 5 x 9. 5 (Buna 70) Rear Outside of Nozzle 1x M1. 0 x 17. 5 (Buna 70) Thread Relief of Front Cylinder 1x M1. 5 x 18. 5 (Buna 70) Captured Between Front Cylinder and Donut 3x M1. 0 x 5. 0 (Buna 70) Two on Nozzle Stem & One Inside of Nozzle 1x M1. 0 x 2. 5 (Buna 70) Plug screw on bottom 1x M1. 0 x 4. 5 (Buna 70) Barb Fitting