

- 250rnd Capacity mid-cap
- High-density polymer construction
- For M4/AR-15 AEGs and other AR-compatible platforms
If you’re after mid-caps with a larger-than-usual capacity, the EMG Strike Industries 250rnd Polymer Magazine for M4/AR-15 AEGs is exactly what you need. Built from ultra-sturdy high-density polymer and equipped with a steel feed spring plus a high-visibility follower, it’s easy to spot when you’ve run your mag dry.
Officially licensed by Strike Industries, this mag is an almost perfect 1:1 replica of the real Strike Mag MK1, proudly showing off subtle trademarks and authentic 5.56x45 calibre markings. If you want something that feels more realistic than a PTS EPM while still offering impressive capacity, this is a top pick.
Fast Delivery
Delivery & Postage
Here at Patrol Base, we send all our packages from our Warehouse based in the UK with the exception of European Warehouse Items. All of our parcels are sent with specially picked couriers to ensure your parcels get to you on time and in one piece.
For more information please check out our Delivery Information Page.
Estimates
Below are some rough postage prices for orders. Please note these are subject to change and are only a rough guide. For a more accurate postage estimate please use the Postage Calculator at the basket.
UK 3-5 day Standard
£6.95
From
Dispatched with 24hr UK mainland
£8.95
From
Highlands / Islands
£24.99*
From
* Please note that Scottish Highlands, and Islands postage prices can vary wildly. Please refer to the Postage Calculator at the basket for the lowest possible price.
Returns
We want you to be absolutely happy with our products and services, so we provide the simple Patrol Base guarantee: if on receiving your item you are unhappy with your item for any reason then simply send it back to us. We will replace or refund the item.
You can return any item for any reason whatsoever, even if you have just changed your mind, within 14 days of receipt of the order. This is in addition to your rights under the Consumer Protection (Distance Selling) Regulations 2000.
For more information on returning products, and how to do it please visit our Returns Policy Page.
Description
Mid-cap mags keep getting larger, but the EMG Strike Industries 250rnd Polymer Magazine for M4/AR-15 AEGs manages to squeeze an impressive 250 BBs into a body that maintains the classic 30-round silhouette. Built from tough high-density polymer with a feel reminiscent of the legendary PTS EPM, it also features a high-visibility follower so you can instantly tell when you’re empty.
The exterior is covered in practical texturing: linear grooves front and back, and dot patterning on each side exactly where you need grip. Whether it’s pouring down or your hands are soaked with sweat, this design helps ensure your reloads stay controlled, no more launching a mag across the site mid-skirmish.
EMG also shaped the shell to prevent over-insertion, protecting your HOP-up unit if you’re the type to reload with enthusiasm. The flattened rear corner allows for “mag podding,” giving you a stable improvised shooting rest. By slightly widening only the non-critical areas, they kept this feature compatible with SCAR-L and 416-style AEGs, which is a welcome bonus.
As for loading, it works just like any other mid-cap; simply use a speedloader or rod through the fill port at the top. The generous 250-round capacity is impressive on its own, but paired with a licensed design, strike-ready ergonomics, and durable, drop-resistant polymer construction, this mag stands out in its price bracket. If you want high-capacity M4/AR-15 magazines with zero rattle, solid build quality, and authentic licensed details, the EMG Strike Industries 250rnd Polymer Magazine is an excellent choice.
Features
- 250rnd Capacity - "UGE for a Mid-cap!
- High-density polymer construction - Really strong stuff
- Licensed Strike Industries design - Authentic trademarks
- Vibrant follower - Easy to see when you're out of BBs!
- Gripping texture on the front and rear - Reduced chance of throwing your mag by mistake
- Flat bottom corner for "Mag-podding" technique - Use your mag for extra stability
- Over-insertion stopper built into the mag design - No chance of slapping it too hard and damaging your HOP-up unit
- Loaded using a speedloader or loading rod through the fill/feed port on the top of the mag
- Compatible with M4/AR-15 AEGs, SCAR-L AEGs and 416 AEGs
Package Includes
- EMG Strike Industries 250rnd Polymer Magazine for M4/AR-15 AEGs
Specification
General
Parts & Accessories Type | Magazine |
|---|---|
Item Colour | Black, Tan, |
Construction | High density polymer with steel feed spring |
Product Height | Approx. 19cm |
Product Length | Approx. 8cm |
Product Width | Approx. 2.8cm |
Weight (KG) | Approx.0.181KG |
Magazine Specific
Magazine Style | M4 / AR Platform, STANAG, |
|---|---|
Platform | M4 / AR-15 / M16, M4/AR-15 AEG, |
Magazine Type |
|
Magazine BB Capacity | Approx. 250 Rounds |




