1. Home
  4. AR15/M16 (223/556)
  5. 10/30 Magpul Pmag 300 BLACKOUT Gen M3 Magazine

10/30 Magpul Pmag 300 BLACKOUT Gen M3 Magazine

1 Review(s) Write a Review
Your Price: $19.95
Part Number: 10/30 MAG800-BLK
Availability: Out of Stock
10/30 MAGPUL PMAG 30 AR 300 B GEN M3 Magazine (300 Blackout)


CAPACITY- 10 Rounds (in a permanently modified 30rd magazine body)


Magpul does not make or sell 10rd magazines, these are modified by Calegalmags. We have been the leader in modified CA compliant magazines since 2007.

Calegalmags modifies Magpul Pmag magazines to 10rd capacity internally. We manufacture our own proprietary limiters which we insert into the magazine to limit capacity to 10 rounds maximum. The limiters are chemical and heat resistant and will never break or fail. In addition to the limiter we also seal the bottom of the magazine shut "permanently" with a industrial grade polymer adhesive (no rivets or blind pins). This magazine can not be taken apart without destroying it. The magazine spring inside maintains full length of the magazine body and is not restricted in any way with our modification. Pmag Ranger Plate can not be added or upgraded by the end user after this modification is performed. So if you would like one installed please choose from the upgrade menu above and we will permanently install it instead of the standard floor plate for you during the modification process.


The PMAG 30 AR 300 B GEN M3 is a purpose-designed magazine for rifles chambered in 300 Blackout. Since it’s inception, 300 Blackout shooters have had to use a magazine designed for another cartridge, limiting it’s performance and compatibility. One of the nice features of 300 Blackout is the compatibility with 5.56x45mm parts, but with the magazine it is a compromise to do so. Due to the wide variety of projectile weights and shapes potentially decreasing overall reliability, a dedicated 300 Blackout magazine was a logical step for the PMAG line.

 In addition to the performance gained by a dedicated mag, the PMAG 30 AR 300 B also offers a safer way to feed your 300 BLK rifle. When using 5.56 mags, the potential to chamber and fire a 300 BLK round in a 5.56 rifle with catastrophic results requires diligent ammunition management by the shooter. The PMAG 30 AR 300 B’s distinct rib design provides the shooter a distinct visual and tactile difference from any other PMAG to mitigate dangerous cross-loading issues. Along with optimized 300 BLK performance, the PMAG 30 AR 300 B brings along all of the GEN M3 features such as our next-generation impact and crush resistant polymer, aggressive front and rear texture, a paint pen dot matrix for marking and identification, and a dust/impact cover. 

• Dedicated, purpose-designed magazine for rifles chambered in 300 Blackout 
• Optimized internal geometry accommodates the wide variety of bullet profiles used in 300 Blackout cartridges 
• Distinct rib design provides the shooter a visual & tactile difference from any other pmag to mitigate dangerous cross-loading 
• Carries forward the physical & performance features of the rest of the gen m3 line


Related Items

Recently Viewed Items