Ball Bearing Ergal Piston Head for AEP/CMG – FPS Softair

FPS Softair Ergal piston head with ball bearing and double O-ring, for the AEP gearboxes of electric pistols and the CMG gearboxes of Marui-compatible electric compact machine guns. It improves the performance of the compression system, protects the cylinder head bumper pad and is lightened without losing strength: a metal part made entirely in Italy.

Features and technical specifications

• Manufacturer: FPS Softair
• Manufacturer code: TPAEP
• Type: ball bearing piston head with double O-ring for AEP/CMG gearboxes
• Material: Ergal (7075 aluminium)
• Seals: double O-ring, with Viton sealing O-ring
• Vent holes: concealed by a rounded milled recess
• Lightening: inner rear section
• Weight: 5.13 g
• Compatibility: Marui-compatible AEP and CMG gearboxes (Glock, Desert Eagle, Beretta, M93R, USP, Hi-Capa, VZ61 Scorpion, MP7, MAC10)
• Origin: made in Italy

How it works

The rounded milled recess conceals the vent holes and prevents premature wear of the cylinder head bumper pad, while the double O-ring keeps the seal inside the cylinder. Removing material from the inside reduces the weight of the head without compromising its mechanical strength.

Installation

AEP and CMG gearboxes are much more compact than rifle gearboxes and need dedicated parts: this piston head is made specifically for them and replaces the original one in the models listed.

In the field

Electric pistols and compact machine guns such as the MP7, Scorpion and MAC10 are widely used in CQB and as sidearms: replacing the piston head with an Ergal ball bearing one is a targeted upgrade that improves the efficiency of the compression system.