Showing 13–19 of 19 resultsSorted by popularity
Magpul PMAG 17 GL9 9mm 17 Round Magazine for Glock 17 Pistols (3 Pack)
ProMag 9mm 28 Round Extended Magazine for Glock 43X, 48 Pistols
maglula StripLULA AR-15 .223/5.56 10 Round Magazine Loader
Lancer L5AWM AR-15 .223/5.56 30 Round Translucent Smoke Magazine
Magpul PMAG GEN 2 MOE AR-15 .223/5.56 30 Round Magazine
Shield Arms S15 9mm 15 Round Magazine (3 Pack) + Magazine Release for Glock 43X, 48 Pistols
No. While the cartridges are similar in size, they are not interchangeable. Firing .300 BLK in a .223/5.56 chamber is dangerous and can result in serious injury or damage to your firearm.
Yes, you can load .300 Blackout ammo in standard AR-15 magazines in .2235/5.56. However, we recommend purchasing magazines dedicated for .300 Blackout as they have improved internal geometry and unique identification markers.
Supersonic .300 BLK travels above the speed of sound and is better for hunting or self-defense due to its higher velocity and energy. Subsonic loads are slower and quieter, especially when paired with a suppressor—ideal for tactical or stealth applications.
Yes, they are the same.
