The Zero Friction piston set developed for ARES Striker platforms (AS-01 / AS-02 / AS-03) provides a targeted internal upgrade to reduce friction and extend component life. The central body is machined in POM and fitted with a double O-ring to minimise leakage and wear; the front seating is made in UREPAN to ensure reliable contact with the cylinder head, while the rear section is reinforced in Tenifer steel for strength under repeated use.

Paired with an aluminium bearing tappet-guide, engineered to match the piston for smooth travel and even energy distribution, this set is the result of collaboration with E.S. Custom Works and manufactured in Italy with strict quality controls.

Concrete benefits: lower internal friction for improved efficiency, optimised impact seating for consistent performance, metallic reinforcement in high-stress areas and low-wear bearing guide for reliable cycles.

Technical features & specifications

Type: piston + tappet-guide set (upgrade / spare)

Compatibility: ARES AS-01, AS-02, AS-03 and compatible platforms

ZEROFRICTION piston: POM body, double O-ring, UREPAN front stop, Tenifer steel tail

Tappet-guide: aluminium with bearing design for reduced friction

Technical collaboration: designed with E.S. Custom Works

Manufacture origin: 100% Made in Italy

Application: maintenance, overhaul and performance upgrade for precision ASG / sniper platforms

Package contents

1 ZERO FRICTION PISTON (for ARES AS-01 / AS-02 / AS-03)

1 ALUMINIUM BEARING TAPPET-GUIDE

Warnings & maintenance

Do not tamper: do not disassemble, grind or alter piston, tappet-guide, O-rings or metal parts; unauthorised changes can impair gearbox function and cause damage.

Installation: fitting requires disassembly of piston/cylinder group and competence with sniper/AEG internals; if unsure, use qualified technicians to avoid damage to cylinder, head, gears or piston.

Storage: store in a dry, temperate environment; avoid moisture, corrosive agents and heat that could damage materials or O-rings.

Removable parts / maintenance: replace worn O-rings with original spares and check UREPAN seating; use recommended lubricants for internals and service through authorised centres for major repairs.

Test safety: wear eye protection during bench testing and assembly; perform low-rate initial tests to verify timing and operation before normal use. Keep out of reach of children.
These warnings are written in clear language and comply with GPSR Regulation and applicable Italian law.