Easy-to-disassemble flared floorplate aids extraction, handling, and provides better drop protection in tight double/triple pouches
Bundle & saveDiscount applied automatically at checkout
Mix and match across the range: 2 items save 5%, 3 save 10%, 4 or more save 15% on your whole basket.
In stock · ready to order
£5 tracked UK deliveryOrder today — estimated delivery 7–10 business daysOrdered in from the manufacturer for you · Royal Mail Tracked 24 · tracking emailed on dispatchDelivery details
Fitment
Check the calibre and platform in the title before ordering; PMAGs are built for the specific rifle or pistol pattern named.
Easy-to-disassemble flared floorplate aids extraction, handling, and provides better drop protection in tight double/triple pouches
Low-profile ribs and aggressive front/rear texture deliver positive control in all environments
Paint-pen dot matrix on the bottom panel enables fast, in-field load identification
Next-generation impact- and crush-resistant polymer construction with corrosion-resistant spring for long service life
What the PMAG 20 LR/SR GEN M3 Magazine fits
Check the calibre and platform in the title before ordering; PMAGs are built for the specific rifle or pistol pattern named. Available in Black, Medium Coyote Tan, Olive Drab Green.
Specifications
Brand
Magpul
Product
PMAG 20 LR/SR GEN M3 Magazine
Type
Magazine
Platform
AR-10
Colours
Black, Medium Coyote Tan, Olive Drab Green
Material
Polymer
Origin
Made in USA
MPN
MAG291
Genuine Magpul, ready to fit. Order the Magpul PMAG 20 LR/SR GEN M3 Magazine today — ordered in from the manufacturer for you and sent by Royal Mail Tracked 24, with delivery in 7–10 business days.
£5 tracked UK delivery on every order via Royal Mail Tracked 24. Our products are ordered in from the manufacturer rather than held in UK stock, so please allow 7 to 10 business days (Monday to Friday, excluding bank holidays) from the date of your order for it to reach you. Tracking details are emailed on dispatch. UK delivery only.
Returns
You have 30 days from receiving your order to cancel it for any reason, then 14 days to send it back unused and in its original packaging. Faulty, damaged or incorrect items are replaced or refunded and we cover reasonable return postage. Refunds go back to your original payment method within 14 days of receiving the return.
Black, Medium Coyote Tan, Olive Drab Green. Choose your colour from the options above.
Where is it made?
Magpul makes it in the USA.
What is it made from?
Polymer, according to Magpul.
Is this a genuine Magpul product?
Yes. It is ordered in from Magpul through our US supplier, not a copy or a clone.
How is it delivered?
It is ordered in from the manufacturer for you and sent by Royal Mail Tracked 24, with delivery in 7–10 business days and £5 tracked UK delivery.
How long does delivery take?
7 to 10 business days from the date of your order. Every order is sent Royal Mail Tracked for a flat £5 and you receive tracking details by email when it is dispatched.
Is this a genuine manufacturer product?
Yes. We list only genuine parts and optics from the brands shown, ordered in from the manufacturer for your order.
Will it fit my rifle, shotgun or pistol?
Compatibility notes on this page come from the manufacturer. If you are unsure, email us with your make and model before ordering and we will check rather than guess.
Do you offer multi-buy discounts?
Yes. Bundle & Save applies automatically in your basket: 5% off when you buy 2 items, 10% off at 3 items and 15% off at 4 or more. It works across the whole range, so you can mix and match, and there is no code to enter.
Can I return it if it is not right?
Yes — you have 30 days from delivery to cancel for any reason, as long as the item is unused and in its original packaging. See our returns policy for the details.
Why Onyx Armaments
Bought once. Bought right.
Genuine manufacturer stockOrdered in from the brand for your order — never grey imports or copies.
£5 tracked UK deliveryRoyal Mail Tracked 24, 7–10 business days, tracking emailed on dispatch.
30-day returnsChange your mind within 30 days of delivery, unused and boxed.
Real answers, fastUnsure about fit? Email support@onyxarmaments.co.uk and we check with the maker.