PTS EPM1-S Mid-Cap Airsoft Magazine M4/AR15 170 BBs — Tan

The PTS EPM1-S is a mid-cap magazine holding 170 BBs, designed for M4 and AR15 AEGs and shaped on the short PMAG 20-round profile. It is the go-to choice for players who want reliable feeding without affecting the look of their replica.

The side transparent window with an orange indicator lets you gauge remaining BBs at a glance; as the magazine empties, the orange follower rises into the window and gives a clear visual warning — a practical detail during a game without having to count shots. The spring and follower are engineered to maintain consistent feeding at high rates of fire and with heavy BBs up to 0.49 g, a critical requirement in DMR builds where slow feeding causes repeated jams. A mid-cap, by design, does not require winding like a low-cap, but does need to be topped up with a speedloader: players who want fast reloads without pauses will find this format the right balance between operational quietness and capacity.

The base-plate has an angled profile that improves stability during supported shooting and makes single-handed extraction from a mag pouch straightforward.

Key features

• 170-BB capacity in a short form factor: compact footprint, easy to handle even with a tactical vest
• Transparent window with orange follower: BB level is readable at a glance, empty magazine is signalled visually
• Reliable feeding with heavy BBs up to 0.49 g, suited to high-FPS DMR builds
• Angled base-plate for stability in a supported position and easy extraction from the pouch
• Compatible with all M4 and AR15 AEG replicas to STANAG standard