Classic Army Cylinder Head for M4A1 and all M15 series AEG's. Compatible with other brands as well.

MODIFY AUG CYLINDER SET W/ BRASS CYLINDER, SS CYLINDER, ASN, POLY PISTON AND HEAD

This package includes everything you need to upgrade your M16, M4, AK or SG/MP style airsoft rifle with a completely reinforced Bore-Up set.M130 Spring,Rotary Spring Guide,Bore up Cylinder,Bore up Cylinder Head,Piston body,Bore up Piston Head,6mm Bushing,Tappet Plate,Bore up Air Nozzle,Anti-Reverse Latch,Synthetic Lubricant With PTFE,(FTK 02U),** This Product is for Toy Guns Only **During checkout, be sure to choose the correct Tune-Up kit for your gun.  If you have ANY questions or if you are unsure about which kit is right for you, please call us prior to placing your order!

Version III Cylinder Head for SRC AK and G36 Series airsoft rifles.

Systema Area 1000 Teflon Cylinder for M16.  (one air hole)

This bore-up cylinder set will allow an increase of airflow inside your gearbox, which results in a higher velocity with NO extra stress on your gearbox.

This bore-up cylinder set will allow an increase of airflow inside your gearbox, which results in a higher velocity with NO extra stress on your gearbox.

This bore-up cylinder set will allow an increase of airflow inside your gearbox, which results in a higher velocity with NO extra stress on your gearbox.

Cylinder head broken? This reinforced replacement will get you back in the game!

BRAVO Airsoft High Performance Part Material: Anodize Aluminum Type: Version 2Feature: High Density, High Strength Shock Absorbing Rubber Bumper.Double O-ring for Perfect Air Seal.One Piece construction for durability