- Alloy receiver with steel trim parts
- For APS ASR series M4/AR15 AEGs
- Includes charging handle, bolt catch, mag release
This Upper and Lower Receiver Set is an original replacement part for the APS ASR series M4/AR15 AEGs but may also fit other gearboxes, though it may require modification. The set includes an alloy upper and lower receiver, a bolt catch, charging handle, a magazine release, trigger guard, a steel dust cover and steel body pins. If you are building a spare upper for your APS ASR AEG this would be a perfect fit, but could also be used to add a touch of metal to a polymer M4/AR15 as long as you are okay with potentially undertaking modifications.
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For more information and to see the country we deliver please check out our Delivery Information Page.
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 Next Day
Highlands / Islands
* Scottish Highlands, Islands, and EU post prices can vary wildly. Prices range from £8.99 to £29.99, so please ensure you refer to the Postage Calculator at the basket for the lowest possible price.
We want you to be delighted 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.
This receiver set includes all of the trim parts one might expect to find on an M4/AR15 receiver, and also sports laser engraved markings on the magazine well and across the right side of the upper. The magazine well markings read "SPECIAL PURPOSE RIFLE" with an APS logo and "Cal. 6mmx45" and "ER21S 106869 G" beneath. The marking on the right side of the upper reads "APS (logo) CONCEPTION".
This receiver is a standard M4/AR15 style receiver, making it suitable for the vast majority of builds, and is a great alternative to the swiss cheesed receiver on many competition-styled APS M4/AR15 AEGs if you ever want to change up the looks. As mentioned, this kit can also be installed on a polymer M4/AR15 AEG to replace its polymer receiver for added realism, though it may require modification for some gearboxes. The rear of the body is not cut out for a quick change spring system, so you may still be able to fit a quick change spring gearbox but you will have to remove the gearbox from the receiver to change the spring.
This part is intended for advanced users only and anyone buying this receiver to install on a non-APS M4/AR15 AEG should be ready to potentially modify parts for a clean fit. This set includes all of the M4/AR15 controls and pins but does not include the mock bolt plate.
- Alloy receiver set
- Steel dust cover and pins
- Includes bolt catch, mag release, trigger guard and charging handle
- For APS ASR Series M4/AR15 AEG
- Laser engraved APS trademarks
- May also fit other M4/AR15 AEGs - Potentially requires modification
- APS Upper And Lower Receiver Set for APS ASR M4/AR15 AEG
External Part Type
Receiver pins M4/AR15
Alloy with steel pins and steel dust cover.
Weight and Dimension
20mm RIS / RAS
AR Platform, M4 / AR-15 / M16, Long Gun, Assault Rifle,