Welcome back to another edition of Blast From The Past. In this series, we look at various firearms that are no longer made and see what made them unique or collectible. This week, we are looking at a collaborative rifle between AAC Suppressors and Knights Armament. The 10.5” AAC 300 Blackout rifle was an interesting option on the market when the 300 Blackout was still in its infancy to show its merits in the AR market back in the day. Let’s take a closer look at the AAC 300 Blackout MPW Rifle.

Back in 2011, AAC came out with the 300 Blackout caliber with Remington in order to have a hard-hitting round that could be used in the AR15 platform but have a shorter overall profile. This variant is the 12.5” version and was a factory SBR. One of the most interesting aspects of this rifle is the collaboration between AAC and Knight’s Armament. AAC went with the URX III rail which is a smooth-sided rail with Picatinny rail sections at the end of the rail. This was when companies were transitioning from quad rails but weren’t using KeyMod or M-LOK rails yet. Moving forward, the MPW came standard with a three-prong flash hider with a rachet system attached for QD mounting.

The original MPW rifles came with MOE+ pistol grip along with the CTR stock from Magpul. When it comes to the trigger, AAC put a Geissele SSA trigger which is known for being a hard use reliable trigger. AAC also put a 12.5” barrel made out of 4150 CMV steel with a 1:7” twist rate. As part of the package, this rifle also came with an SDN-6 suppressor from AAC. This suppressor was cutting edge for the time but certainly lacks in sound suppression and size by today’s standards. MSRP on this rifle was $1,599.99 for the rifle only and more for the package. This may seem like an older rifle with limited modularity, but in terms of a snapshot in history, it’s a pretty unique and cool piece of modern rifle history.