PTS EPM1-S RX Enhanced Polymer Magazine Short (AEG) – Black

Description

High-Capacity Short Magazine Performance: PTS EPM1-S RX Enhanced Polymer Magazine – Black

Get the capacity of a much larger magazine without the extra length with the PTS EPM1-S RX Enhanced Polymer Magazine Short (AEG) – Black. Designed for M4 and AR-15 AEG platforms, this updated short-format magazine holds an impressive 170 BBs while retaining a compact 20-round-style profile.

The EPM1-S RX builds on the popular PTS EPM1-S design, introducing revised internal tooling, a smoother BB channel and an improved follower arrangement to support consistent feeding, including in high rate-of-fire AEG builds. Its rugged DuPont Zytel polymer construction and practical external features make it an excellent choice for players who want dependable capacity in a compact package.

Updated RX Internal Design for Consistent Feeding

The RX revision features a newly tooled grey internal shell, with refined dimensions and a smoother internal BB channel. This update is designed to help BBs travel more freely through the magazine, supporting consistent feeding during rapid semi-automatic or full-automatic firing.

The enhanced magazine follower, developed in collaboration with Deranged Designs, is designed to keep the BB stack correctly aligned and reduce the chance of BBs slipping past the follower and causing feeding problems.

You can identify the RX version by its grey internal shell and EPM1-S RX markings.

170-Round Capacity in a Compact Short Magazine

Despite its short 20-round-style external profile, the EPM1-S RX holds an impressive 170 BBs. This makes it particularly useful for players who prefer a shorter magazine for CQB, low-profile rifle setups or shooting from supported and prone positions.

The integrated orange fuel gauge indicator provides a quick visual reference of the remaining ammunition. The indicator sits at the top when the magazine is full and moves downwards as BBs are fired, reaching the bottom when empty.

Durable DuPont Zytel Polymer Construction

The outer magazine shell is manufactured from high-strength DuPont Zytel reinforced polymer, designed to withstand the demands of regular skirmish use.

PTS has also incorporated its signature EP textured surface to provide a positive grip, while the continuous magazine well guide helps reduce snagging when inserting the magazine into a rifle or drawing it from a pouch.

Angled Basepad and Practical Details

The angled basepad provides a flat surface that can be rested against a suitable support or shooting position, helping stabilise the rifle. It also features a front indexing lip to assist with magazine handling and a dot matrix pattern that can be used for personal identification markings.

M4 and AR-15 AEG Compatibility

The PTS EPM1-S RX is designed for Version 2-based M4 and AR-15 AEG platforms. PTS lists compatibility with a wide range of popular manufacturers, including Tokyo Marui, KWA, VFC, G&P, Classic Army and AMOEBA.

Compatibility can vary between individual rifle models and magazine well tolerances. As with any aftermarket magazine, we recommend checking fitment with your particular rifle before relying on it for a game day.

Technical Specifications

Compatible Platforms

• Tokyo Marui-style AR-15 AEG rifles
• KWA AR-15 AEG and ERG series
• PTS ERG series
• PTS Masada AEG
• PTS PDR-C AEG
• VFC AR-15 and HK416 AEG series
• Classic Army AR-15 and 416 AEG series
• G&P AR-15 AEG series
• AMOEBA AM-series AEG variants

Key Features

• 170-round capacity in a compact short magazine design
• Updated EPM1-S RX internal tooling
• Smoother grey internal BB channel
• Enhanced follower developed with Deranged Designs
• Designed to support consistent feeding in high rate-of-fire builds
• Durable DuPont Zytel reinforced polymer outer shell
• Orange visual ammunition level indicator
• High-efficiency compression spring
• Low-friction internal BB channel
• Angled basepad with flat resting surface and dot matrix identification area
• Continuous magazine well guide to help reduce snagging
• PTS EP textured finish for improved handling

The BR Airsoft Pro Take

The PTS EPM1-S RX is a clever option for anyone who likes the handling benefits of short magazines but doesn’t want to sacrifice ammunition capacity. Getting 170 BBs into a compact 20-round-style magazine is impressive, and the updated RX internals make this an appealing option for players running faster AEG setups.

We particularly like the orange fuel gauge, which gives you a quick visual indication of how much ammunition remains, and the angled basepad is a useful addition when shooting from supported positions.

If you’re building a compact M4, setting up a CQB rifle or simply want a premium short mid-cap magazine, the PTS EPM1-S RX is well worth considering.

Frequently Asked Questions

How many BBs does the PTS EPM1-S RX hold?
It holds 170 BBs, which is an impressive capacity for a short-format M4 magazine.

Is this a mid-cap or high-cap magazine?
It is a spring-fed mid-cap magazine. It does not use the winding wheel mechanism found on traditional high-capacity magazines.

What is the difference between the EPM1-S and EPM1-S RX?
The RX version features revised internal tooling, a grey internal shell and a smoother BB channel. It also features the updated follower design intended to improve feeding consistency.

How can I identify the RX version?
Look for the grey internal shell and the EPM1-S RX markings on the internal housing.

Does it fit all M4 AEG rifles?
It is designed for a wide range of Version 2-based M4 and AR-15 AEG platforms. However, magazine well dimensions can vary, so compatibility is not guaranteed with every model.

What is the orange window on the side?
This is the fuel gauge indicator. It moves downwards as BBs are fired, allowing you to see the approximate remaining ammunition level.

Can I use this magazine with a high rate-of-fire AEG?
The revised RX internal design and enhanced follower are intended to support consistent feeding in high rate-of-fire builds. Actual feeding performance will also depend on your rifle’s configuration and condition.

Is this magazine suitable for prone shooting?
Yes. Its shorter profile helps keep the magazine out of the way, while the angled basepad provides a flat resting surface against suitable supports.

Upgrade your M4 magazine setup with the PTS EPM1-S RX Enhanced Polymer Magazine Short – Black, available from BR Airsoft.