PTS Spring Replacement Parts Kit for EPM1 Airsoft Magazines speed Chamber includes BB stopper and

Chamber includes BB stopper and adjustable arms

A great replacement hop up unit for your VSR or compatible sniper rifle

Fits in all standard Beretta 92/M9 holsters

Industry standard for the highest quality custom gun setups

some other websites claim 1700 capacity

PTS Spring Replacement Parts Kit for EPM1 Airsoft Magazines speed Chamber includes BB stopper andFactory direct OEM replacement part Drop in replacement internals, all you need is the shell and floor plate Durable high efficiency steel follower spring Manufacturer: PTS Compatibility: For PTS EPM1 M4 Airsoft AEG MagazinesPackage Includes: 1x Long Spring, 1x Short Spring Plastic Connector, 1x Spring Guide w Screw, 1x PTS Enhanced Magazine Follower