Quick Overview

Must be 21 or older to purchase.
If you live in California, please read this notice before ordering.
WARNING: This product can expose you to the chemical lead, which is known to the State of California to cause cancer and reproductive harm. For more information go to (CA Health and Safety Code Section 25249.6).
SKU: 5165449163
UPC: 5165449163
MFR#: 5165449163
Barrel Length: 8.5"
Gas System: Pistol-length
Barrel Profile: Heavy
Barrel Steel: Chrome Moly
Barrel Finish: Phosphate
Chrome Lining: None
Muzzle Thread: 5/8-24"
Chamber: 300AAC Blackout
Twist Rate: 1 in 8"
Barrel Extension: M4
Diameter at Gas Block: .750" 
Gas Block Type: Low-profile
Muzzle Device: A2 Style Flash Hider
Receiver Material: Forged 7075 T6
Receiver Type: M4
Handguard Type: 7" Lightweight M-Lok Rail
Bolt Steel: Carpenter 158
Bolt Carrier Profile: Full-Auto
Lower Receiver: Forged 7075 T6 Aluminum
Receiver Finish: Hardcoat Anodized
Fire Control Group: Single-Stage, Mil-spec style
Grip: Magpul Grip, Black
Buffer Tube: KAK Industries Shockwave Pistol Buffer Tube
Adjustment: Fixed
Pistol Brace: KAK Industries Shockwave Blade, Black
Barrel: Chambered in 300AAC Blackout with a 1:8 twist rate, M4 barrel extension, and a pistol gas system this barrel features a phosphate finish for accuracy and durability. It is finished off with a PSA 7" Lightweight M-Lok rail, .750" diameter low profile gas block, and an A2 flash hider.
Upper: Forged 7075-T6 A3 AR upper is made to MIL-SPECS and hard coat anodized black for durability. Featuring machined T marks, and a mil-spec finish. These uppers are made for us right here in the USA by a mil-spec manufacturer.
Bolt: Bolt is made of Mil-spec shot-peened Carpenter 158 steel. Gas key is secured with grade 8 fasteners and staked per mil-spec. Bolt carrier is parkerized outside, and chrome lined inside.
Lower: These forged lowers are quality made using 7075-T6 aluminum and are marked "MULTI" for caliber.  Fitted with a KAK Industries Shockwave Blade and Magpul Grip. 
SKU: 5165449163
UPC#: 005165449163

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Comments (7)

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Got one. Bit of a gimmick. wanted to get something that I could use with a suppressor one day. I tried the sub sonics and they were super dirty. Took a good amount of effort to clean up the gun. S&B. And that was without a suppressor ,that will make it worse. Not a fan of the shockwave either. I Iike my 9mm better,with the SB3. Cheap to shoot and does the job. besides, psa right now has just about shut down its customer support service and I have had damaged parts sent to me in the past by them.

1 vote
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I have a similar setup to this one, but with the SBA3 instead of the KAK Shockwave and a 2-stage LaRue instead of the standard PSA trigger. Those two changes were what made the platform for me. S&B is known to be dirtier ammo than other manufacturers. It cleans up just fine, IMO. Also, if you’re really bothered by it, just swap the gas block to an adjustable model. That will help with fouling.

100% agree with your assessment of PSA, though.

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Anyone have one of these? If so would you recommend it?

1 vote
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I'm on the fence, also. I shot a friend's 8.5" 5.56 and liked it but was leaning toward another caliber maybe.

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I have a 10.5" 300BO with a Hardened upper and a PSA lower with SBA3 brace. This is a blast to shoot. Got it for suppression, which is the sole purpose of this caliber and to function well with shorter pistol barrels. The optimal length is 9". So, this should shoot very well. I personally like 10.5" and don't understand a 16" 300BO barrel. That's not what the caliber was designed for. Below is my baby.

2 votes
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I love it! Nice build. Do you happen to have the manufacture #? I am looking to buy something like this. Thanks

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I sent you a private message.

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