PSA Gen4 4" 9mm 1/10 M-Lok MOE EPT Shockwave Pistol, Black - 5165450374

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PSA Gen4 4" 9mm 1/10 M-Lok MOE EPT Shockwave Pistol, Black - 5165450374


Quick Overview

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

Must be 21 or older to purchase.

If you live in California, please read this notice before ordering.

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 (CA Health and Safety Code Section 25249.6).

SKU: 5165450374
UPC: 5165450374
MFR#: 5165450374

Barrel Length: 4"
Barrel Profile: Heavy
Barrel Steel: Chrome Moly Vanadium 
Barrel Finish: Nitride 
Chrome Lining: No
Muzzle Thread: 1/2-36
Chamber: 9mm (9x19)
Twist Rate: 1 in 10"
Barrel Extension: 9mm, Blowback
Muzzle Device: PSA Fluted Flash Can
Receiver Material: Billet 7075 T6 Aluminum
Receiver Type: Slick Side 
Handguard Type: PSA 5" Lightweight M-lok Rail
Bolt Included: Yes 
Bolt Steel: 8620, Nitride / Heat Treated 
Lower Receiver Material: Billet 7075 T-6 Aluminum
Lower Receiver Finish: Hard Coat Anodized, Black
Fire Control Group: PSA Enhanced Polished Trigger (EPT)
Grip: Magpul MOE Pistol Grip, Black
Stock: KAK Industries Shockwave Blade
Buffer Tube: KAK Industries Pistol Buffer Tube 
Magazine: ETS 31rd Glock Magazine

Add To:

Barrel: 4" chrome moly vanadium steel barrel. Chambered in 9mm (9x19), with a 1/10 twist rate. The barrel is nitride treated for durability and finished off with a PSA 5" Lightweight M-Lok Rail, and a PSA Fluted Flash Can muzzle device.

Upper: Newly designed billet 6061-T6 slick side upper is hard coat anodized black for durability.  Featuring T-marks, these upper receivers are made for us right here in the USA.

Bolt Carrier GroupGen 4 Hybrid 9mm BCG.  Nitride treated 8620 steel bolt, with an enhanced firing pin and external 5.56 style extractor. The bolt carrier group is compatible with most aftermarket fire control groups. 

Flash Can: Palmetto State Armory's new fluted flash can. This is a solid 6061 aluminum device that is designed to direct muzzle gases and the muzzle flash forward. Threaded 1/2-36 for 9mm.  Black military-style hard anodizing.   THIS DEVICE IS NOT DESIGNED TO REDUCE RECOIL, MUZZLE RISE, OR FLASH SIGNATURE. This device is designed to direct gasses and noise forward away from the shooter and enhance the weapon's appearance.

Lower: Billet 7075 T6 aluminum and then hard coat anodized, these lowers are purpose-built to accept 9mm Glock®-style magazines. Designed to work with PSA's new 9mm Gen4 Hybrid uppers.  The lower is assembled with a Palmetto State Armory MOE lower build kit with a Magpul Grip, PSA Enhanced Polished Trigger (EPT), KAK Industries Pistol Buffer Tube, and KAK Industries Pistol Stabilizing Blade.  Does not include last round bolt hold open feature.

SKU: 5165450374
SKU 5165450374
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: 5165450374

Questions and Answers

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Browse 8 questions Browse 8 questions and 2 answers
I see this AR-9 in a similar build except it has a "Billet 7075 T-6 Aluminum" lower. Is there a "better" lower then the other, advantages / disadvantages....likes n dislikes? And a recommended Red Dot optic for this if you can. Thanks.
TexasTP75 on Feb 1, 2019
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Do you have anything like this that would take the Smith & Wesson M&P 9mm magazine's?
Luis C on Dec 21, 2018
Does this rig have last round hold open?
RON C on Dec 27, 2018
Does the lower have a feed ramp?
Brian S on Dec 21, 2018
BEST ANSWER: No. If it did, PSA would state it above. If you want a lower feed ramp you will need to install a TACCOM AR-9 PCC.
Taccom AR-9 PCC Feed Ramp for Glock-style 9mm Lower Receivers - 163
Taccom AR-9 PCC Feed Ramp for Glock-style 9mm Lower Receivers - 163
Does the LAW TACTICAL LLC - AR-15/M16 GEN3-M FOLDING STOCK ADAPTER work with this pistol?
Roland V on May 21, 2019
What is the poundage of pull for the EPT trigger?
David G on Feb 10, 2019
Will this shoot +P and +P+ ammunition?
Robert G on Feb 3, 2019
Can you use any ar15 charging handle with this?
Timothy B on Dec 28, 2018


4.0 / 5.0
1 Review
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1 Star
500 rounds and no failures. The flashcan doesn't leave much room on the M-lok foregrip to mount a rail. Had to trim a polymer one to get it to fit.
User submitted image
Added Jun 6, 2019
June 7, 2019

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