RPS Airsoft AEG M4 Mid-Cap Murder Magazine Spring with Follower Kit (3 Pack) (GG08-23)

RPS Airsoft AEG M4 Mid-Cap Murder Magazine Spring with Follower Kit (3 Pack)

Great for reliable feeding when using heavyweight BBs or both.

Includes the following:
3 - Heavyweight Springs found in Murder Mags
3 - Unique-Shaped Follower that allows smooth BB feeding and turning through curves of magazines.

Murder Mag Spring and Followers are replacements for Murder Mags but that are used commonly as replacements for other M4 Mid Cap magazines. Very common to replace ARP9 Magazines and Hi Capa magazine springs.

Some modifications are required in some applications.  For Hi-Capas, use stock follower.