The B-Square Black Magazine Doubler makes it quick and efficient to reload with a second magazine and is excellent for seated and prone shooting positions. The magazine doubler seats two AR-style magazines so they are staggered enough to clear the ejection port. The rounds are protected from dirt by 2 top round protectors. This magazine doubler is not compatible with Mag-Pul Magazines.
|Caliber||223 Remington/5.56 NATO|
|Brand Fit||AR-15 Platform|
Determined at checkout.