Details
Details
Features:
- 20 Rounds
- Dedicated 300 Blackout magazine
- Impact and crush resistant polymer construction
- Optimized internal geometry for 300 BLK
- Anti-tilt, self-lubricating follower
- Long life USGI-SPEC stainless steel spring
- Over-travel insertion stop
- Distinct rib design and smoother upper texture for easy identification
- Aggressive front and rear texture
California Prop 65 warning
WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to www.P65Warnings.ca.gov.Ratings & Reviews
20 reviews
Can't Go Wrong With PMAGS
by Chuck -
Classic Magpul, love the look of the 20 rouders for 300 Blackout. Reliable as always.
great mags
by chuck
ran 220gr sierra match kings with ease. cant beat magpul pmags
The GoTo Mag for PDF
by Woody -
The 20rnd Magpul for 300BO is def my preferred set up for the size and weight. Easy to take apart and clean if/when needed. Put some blue cloth grip tape to mark subs or 300bo(though the follower tells the tail, and they are marked) and get out to the range!
300 pmag
by Greg R. -
What can be said, it's a Magpul Pmag, it does what it's supposed to do. Primary has good prices, great customer service and fast shipping.
Magpul 300 Blackout Mags
by Taz -
What can I say, they’re Magpul Mags that always work, at a very good price.
Mixed feelings!
by Twisted00 -
Some of the mags will not chamber a round if the mag has 20 rounds it, take one out and it works just fine. Will be reaching out to Magpul because this is not acceptable!
Rattles
by Alexander -
If these mags are at least 1/2 of the way full, they begin to rattle like crazy if you subject them to movement. I wish I had seen this issue before I bought them or I would have went with Lancer instead.
Here is a demonstration of what I mean. This isn't even my video and look at the comments. This was an issue for many people 5 years ago and they still haven't fixed it.
https://www.reddit.com/r/300BLK/comments/g9bhqw/pmag_rattle_problem/
And this is from someone who loves my 5.56 PMAGs. Also the 30 rounder 300 blk pmag has the same issue.
What a surprise....truly did not expect it..
by lowjax -
I just received my BCA 300 AAC upper so obviously I had to get some mags.
Well since several are making 300 AAC mags I tried three brands.
1.This PMAG
2.The Lancer 20 round translucent
3. The Lancer 20 round translucent
4. The DH 20 round
Only the PMAG would not lock into my AR-15 lower.
Yep - blue my mind, thought I may have had it upside down or something, so I checked it on anther lower. Same.
That is with no rounds loaded.
Loaded in my Ruger Ranch/300 AAC Gen II.
On a related note the DH would not even insert fully to my AR lower. Had to remove the upper and tap it out.
Works great on the Ruger GEN II.
Perfect mag for BLK.
by Erica -
Feeds perfectly, short and light, 20 rounds is perfect for home defense, fed super and subs with no issues at all. It's a Pmag, it does what it does. Buy specific blackout mags for your 300, don't use 5.56.
Thumbs up
by Aaron W -
All around good experience. Good price and shipping. Quality mag