8.5" shockwave AR 15 300 blackout pistol kit

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PSA 8.5" Pistol-length 300AAC Blackout 1/8 Phosphate 7" Lightweight M-Lok Classic Shockwave Pistol Kit - 5165449635

In stock

Regular Price: $ 559.99

Special Price $ 299.99

Quick Overview

free shipping Free Shipping applies to this item only and not the entire order.

It is the customer's responsibility to be aware of all applicable laws and regulations regarding the purchase and ownership of uppers with a barrel length of less than 16". Federal NFA regulations are applicable to this item.

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 www.p65warnings.ca.gov (CA Health and Safety Code Section 25249.6).

SKU: 5165449635
UPC: 5165449635
MFR#: 5165449635

Barrel Length: 8.5"
Barrel Profile: Heavy
Gas System: Pistol-length
Barrel Steel: 4150V Chrome Moly Vanadium
Barrel Finish: Phosphate
Chrome Lining: No
Muzzle Thread: 5/8-24
Chamber: 300AAC Blackout
Twist Rate: 1:8
Barrel Extension: M4
Diameter at Gas Block: .750
Gas Block Type: Low-profile
Muzzle Device: A2 Style Flash Hider
Receiver Material: Forged 7075 T6 Aluminum
Receiver Type: M4
Handguard Type: PSA 7" Lightweight M-Lok Rail
Bolt Carrier Group Included: Yes
Bolt Steel: Carpenter 158
Bolt Carrier Profile: Full-auto
Charging Handle Included: Yes
Build Kit: PSA Classic Shockwave Pistol Kit, Black

Add To:

Barrel: 8.5" 4150V Chrome Moly vanadium steel, phosphate coated for durability and chambered in 300AAC Blackout with a 1 in 8" twist. The pistol-length gas barrel is finished off with a PSA 7" Lightweight M-lok Rail, a 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 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 phosphate coated. 

Build Kit: A high quality lower build kit with everything you need to assemble your AR-15 lower into a pistol. Pistol kit includes a Shockwave Blade pistol stabilizer, Shockwave tube, PSA classic A2 grip, USGI trigger guard, carbine buffer spring, and standard carbine buffer.

SKU: 5165449635
SKU 5165449635
Brand Palmetto State Armory
Daily Deal No
Daily Deal Expires No
Youtube Video No
Free Shipping? Yes
Free Shipping Qty Label No
Free Shipping Qty No
SKU: 5165449635

Questions and Answers

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Browse 7 questions Browse 7 questions and 16 answers
Is the brace adjustable?
Philip A on May 28, 2019

It is adjustable in the sense that you have to unscrew a small hex screw and adjust to desired length then tighten. You can not quick adjust using a lever or button.
Has anyone had issues with putting magpul flip up mbus sights on this upper? I have tried on other PSA uppers and they didnt work.
Adam M on Jun 20, 2019
BEST ANSWER: Im using them on mine had no issues installing them
What is the weight of this kit, either with or without Lower Receiver?
Pastor Ron on Apr 12, 2019
BEST ANSWER: Mine came in at 5.6 lbs, including the lower and a Sig Sauer red-dot sight.
Is the gas block adjustable? (The Magtech subsonic .300 blackout ammo sold by PSA suggests this is recommended)
Berwick L on Apr 25, 2019
BEST ANSWER: It’s not adjustable out of the box, but mine has been 100% reliable with subs (suppressed, because why would you shoot subs otherwise?) I’m running the buffer and spring provided in this kit.
What is the difference between this kit and sku ending in 142?
Marvin J on Mar 31, 2019
BEST ANSWER: Based on the pictures, the rail appears to be different, although the description doesn't indicate a difference.
Why are the barrels Not chrome lined?
Brian D on May 19, 2019
BEST ANSWER: Chrome lined barrels decrease accuracy
How long would it actually take to receive this if I ordered it? Last time I ordered something, it took weeks.
LostSalmon on Apr 17, 2019


5.0 / 5.0
28 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
great buy
Functions flawlessly
June 17, 2019
2 months ago
Really nice kit. well worth the money.
Really nice kit! Well worth the money.
Really nice kit! Well worth the money.
June 16, 2019
2 months ago
Shoots well. Just need more ammo
June 16, 2019
2 months ago
Great gun great fun.
Went together smooth and easy. Price was great. My new home protection.
Size comparison.
User submitted image
June 14, 2019
2 months ago
It’s amazing
Great cycling gun love it
300 black out
300 black out
June 13, 2019
2 months ago
What a deal!
Great deal, packaged well, great product.
Went together great.
Went together great.
June 12, 2019
2 months ago
Well done palmetto state
Kit contained everything I needed except the lower, all parts were well finished and a little better than I expected for the money.
300 black upper matched up well with the 80% arms billet lower, good fit and finish
300 black upper matched up well with the 80% arms billet lower, good fit and finish
June 12, 2019
2 months ago
Couldn't Resist This for Value and Quality
I wasn't planning a .300 pistol build - or, at least I wasn't until I saw this. I couldn't believe the price point for everything except a lower.

I bought a lower locally and put this together in a jiffy. The only criticism I have of anything included with the kit is that like most stock ARs, the trigger is gritty and rough. It would probably smooth out with some use but I've gone ahead and ordered a LaRue MBT-1 single stage trigger for it.

Even after buying the trigger and a Sig-Sauer Romeo 5 for it, I feel like I'm still ahead on this build! Very happy with my purchase.
User submitted image
Added Jun 12, 2019
June 12, 2019
2 months ago
Works great! Love the 300blk, was skeptical at first but I shoot it more often than the 223’s now.
June 12, 2019
2 months ago
Wonderful build it was worth every penny
Wonderful build worth every penny
User submitted image
User submitted image
June 12, 2019
2 months ago

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