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KWA LM4 AEG Hop Up Conversion Installation Guide

KWA LM4 AEG Installation Guide
Below you’ll find a complete installation guide on how to assemble and install the AEG hop unit. This task can be done in less than 5 minutes providing the outer barrel is already removed from the receiver.
Parts Needed
  • LM4 AEG Hop Up Set – Hop Up Unit Upper - Hop Up Unit Lower - 2x Clamping O-Rings - M3 Set Screw
  • AEG Hop Up Rubber of your choice
    •  The softer AEG rubbers appear to give the best sealing and lift for the heavier weight BBs. (Prometheus Purple Rubber, Madbull Blue, Guarder Clear etc. This list is not exhaustive; get out there and experiment)
  • AEG spec Brass outer barrel
    • o Older generation brass barrels require modification to the Hop Unit. - Remove the locating lugs on the hop unit.
    • o Widebore barrels require some modification to the Hop Unit. - Remove the locating lugs on the hop unit.
Tools Needed
  •  2.5mm Hex Key (Size for M3 Set Screws)
  • Small Flat Head Screwdriver.

    Guide and Hop-up created by Callum of H04. Hop-up units exclusively sold by Gas Blowback Central. Click here to buy one today!