SRS Steel Magazine 30 rds SP-MAPL-47 The nub is designed to

The nub is designed to fit with minimal play inside the hop-up arm

With its SUS304 stainless steel lining

Precision CNC-machined from 7075-T6 aluminum

This adapter features an HPA input valve and is compatible with standard M4 / AR-15 style AEG magazines

Still compatible with pre-2021 Systema gearbox

SRS Steel Magazine 30 rds SP-MAPL-47 The nub is designed toSteel magazine for Silverback SRS A1. 30 BB capacity. Licensed product by Desert Tech. All new magazines come with the standard follower installed, plus a long, flexible follower to extract the final 4 BBs stuck in the BB tube (reducing magazine capacity to 26 rounds). You can choose which one to use.