Magpul PMAG 40 AR/M4 Gen M3 5.56 AR-15 Magazine - Black
The Magpul PMAG 40 GEN M3 is a 40-round 5.56 NATO polymer magazine for AR-15/M4 compatible weapons. This magazine features a long-life USGI-SPEC stainless steel spring, four-way anti-tilt follower and constant curve internal geometry for reliable feeding. A redesigned bolt catch notch in the rear of the magazine provides increased bolt catch clearance, while an over-travel stop on the spine helps ensure the magazine will not over-insert on compatible weapons. Slim, for better compatibility with tight magazine pouches, this easy to disassemble magazine features a flared floorplate, low profile ribs, and aggressively textured front and rear surfaces for positive control. A paint pen dot matrix on the bottom panel of the body allows easy marking for identification.
- Impact and crush resistant polymer construction
- Constant curve internal geometry
- Anti-tilt, self-lubricating follower
- Long life USGI-SPEC stainless steel spring
- Over-travel insertion stop
- Ribbed gripping surface
- Aggressive front and rear texture
- Paint pen dot matrix panels
- Flared floorplate
- Pop-off impact/dust cover
Magpul continues to grow and develop based on innovation, simplicity, and efficiency. At Magpul, mission driven requirements inform their product design, materials, and manufacturing, focusing on efficiency without sacrificing quality or performance.
Ratings & Reviews
by mario delgado
Love magpul. Love having these 40 round mags. Extra fun at the range. Strong, durable and all around great product. Will buy more. And primary arms, thanks for the great experience.
by R B
Love the mag's 40 round capacity, except that there's no window and you can't see how many rounds remaining left
by Brian Majors
Pmags are excellent magazines all the way around and primary arms delivers with fast shipping and excellent customer service!
40 is better than 30
by Christopher Baer
Reliable and fun!
MAGPUL PMAG 40rd NON-Window GEN M3 - Black
by David Beasley
these are the best for the money.
Best high capacity magazine
by Kevin Pinnock
These things are awesome. Period. Only slightly larger than the regular 30rd PMAG, and a whole lot smaller than other 50-60rd magazine options, while being quite more reliable than those other options.
This mag feeds fine and is very comparable to the 30rd version however it is much longer and heavier also it is slightly more loose fiting in my bushmaster lower compared to standard mags
Sick mag had to have one.
by Brennan McCray
Very cool magazine. Fast shipping.
Pmag 40 Round
by James Smith
Very fast shipping , this order shipped same day. Always get a tracking #. Customer Service is always top notch. Their one of the companies who didn't price gouge on Pmags. Thanks
Good mag/great service
by Barack Hussein Obama
What else is there to say, service is the absolute tops from PA and the mag is pretty nice too. The only thing I would ding PA is the 1 mag limit right now, wish it was two mags.