Advanced Armament Corp. AAC MPW 300 Blackout Knight’s Armament Rail Rifle
SOLD FOR: $1,650.00
LSB#: WY241108MC020
Make: Advanced Armament Corp. AAC
Model: MPW, Multi Purpose Weapon
Serial Number: MPX00177
Year of Manufacture: Modern, discontinued.
Caliber: 300 Blackout (7.62x35mm)
Action Type: Semi-Automatic, direct impingement, fed by detachable AR15 pattern magazines.
Markings: The barrel is marked “GO41327945 300 AAC BLACKOUT 1/7”. The forend is marked “KNIGHTARMCO.COM URX 3.1 13.5 P/N – 30326”. The upper receiver is marked “AAC” on the right side and “300 AAC BLACKOUT (7.62x35mm) ADVANCED ARMAMENT CORP.” The lower receiver is marked “AAC / MPW / 300 AAC BLACKOUT / MPX00177”, and “ADVANCED ARMAMENT CORP. / LAWRENCEVILLE, GA USA”. The lower also has pictograms for safe and fire. The stock is marked “MAGPUL MOE”.
Barrel Length: 16”. 18” with the SilencerCO ASR three prong muzzle device.
Sights: This rifle has no provisions for iron sights. The rifle has a 19” picatinny rail for the mounting of optics and accessories.
Stock Configuration & Condition: The furniture set on this rifle includes a 13.5” Knight’s Armament free floating forend with 6 built in picatinny rail sections for mounting accessories and threaded slots to attach more, an A2 style pistol grip and MAGPUL MOE collapsible buttstock. The length of pull is 14” from the front of the trigger to the back of the buttpad at full extension. The forend shows some minor handling wear typical with this type of finish. The pistol grip and butt stock also show only very minor handling wear. Overall the furniture is in Excellent to Like New condition.
Magazine Quantity & Condition: None.
Type of Finish: Black
Finish Originality: Original
Bore Condition: The bore is bright and the rifling is sharp. There is no erosion in the bore. The feed ramps are smooth and shiny with some very minor copper fouling. The muzzle device shows some very minor fouling. In this writer’s opinion the bore rates 9/10.
Overall Condition: This rifle retains 99% of its metal finish. The finish shows minor handling wear and almost no evidence of use. The lower has some rub wear from the dust cover. The screw heads are sharp and the pins are unmarred. The markings are clear. Overall this rifle is in about Excellent condition.
Mechanics: The action functions correctly. We did not fire this rifle. As with all used firearms, a thorough cleaning may be necessary to meet your maintenance requirements.
Box, Paperwork & Accessories: This rifle includes a serialized cardboard box with foam cutouts, yellow chamber flag, cable lock with keys and manual.
Our Assessment: The AAC (Advanced Armament Corp) MPW (Multi-Purpose Weapon) AR-15 in .300 Blackout is a highly versatile and reliable firearm designed for performance across various shooting applications. Chambered in .300 AAC Blackout, this rifle is optimized for both supersonic and subsonic ammunition, offering flexibility for suppressed or unsuppressed shooting. The 16″ barrel balances compactness with effective ballistic performance, and the addition of a SilencerCo ASR three-prong flash hider suppressor mount provides a reliable option for quickly attaching a compatible suppressor, further enhancing the rifle’s suppressor-ready design.
The rifle is outfitted with a 13.5-inch Knights Armament URX 3.1 free-float forend, which offers a durable and modular mounting platform for accessories like lights, lasers, or grips via its integrated rail sections. The free-float design also improves accuracy by minimizing barrel contact. The Magpul MOE collapsible stock adds ergonomic comfort and adaptability, allowing for quick length-of-pull adjustments to suit various shooters or shooting positions. Together, these features create a rifle well-suited for tactical roles, home defense, or recreational shooting.
The AAC MPW’s .300 Blackout chambering makes it a standout choice for users who prioritize adaptability, especially in scenarios requiring suppressed fire. Its combination of high-quality components, such as the durable URX 3.1 forend, Nickel boron bolt carrier and the reliable SilencerCo ASR muzzle device, makes it a premium option for enthusiasts who value performance and modularity. Please see our high quality photos via the link and best of luck with your bidding!!!-R.L.
