Shipping to California
- Status: Complete upper with a barrel. Not a serialized firearm, but we ship it to a licensed dealer only.
- Delivery: Ships to WBT in La Mesa or to the California gun store you choose; select your dealer at checkout. Not shipped to home addresses.
- Learn more: Featureless or fixed magazine: which fits your build · FAQ
About this upper
Palmetto State Armory PSA Gen4 16" Complete Upper with 13.5" M-LOK Rail is an upper receiver chambered in 9mm with a 16" barrel. Finish: Black.
Manufacturer details
Key Features
- 16" heavy barrel with 1:10 twist, nitride treated, with 1/2-28 muzzle threads
- A2 style flash hider (9mm birdcage)
- Billet 6061-T6 aluminum slick side upper, hard coat anodized black, made in the USA
- PSA 13.5" Hex full Picatinny M-LOK free-float rail
- Gen 4 Hybrid 9mm bolt carrier group in nitride treated 8620 steel, with enhanced firing pin and external 5.56 style extractor
- Charging handle included
Details
This upper ships complete with a Gen 4 Hybrid 9mm bolt carrier group and charging handle. The BCG is compatible with most aftermarket fire control groups.
PSA states it cannot guarantee function with EndoMag 9mm magazines.
Specifications
- Brand: Palmetto State Armory
- Caliber: 9mm
- Barrel: 16 in
- Finish / color: Black
- UPC: 51655155037
Buying from WBT Guns
- Delivery: Complete uppers ship to a licensed dealer only. Free pickup at our La Mesa store, or select the California gun store you want it sent to at checkout.
- Payment: Pay in full, put 50% down with the balance due in 14 days, or finance with Credova.
- Questions: Call (619) 667-9453 or email sales@wbtguns.com. FAQ
WBT Guns is family-owned in La Mesa, California, and has shipped parts and receivers to California buyers since 2012.
A note on accuracy. We work hard to keep every listing correct, but specifications, images and compliance details come from many sources and can contain errors or change without notice. Images may show a configuration that is not California-legal. If a detail on this page matters to your decision, call us and we will confirm it against the actual firearm before you order. The compliance information here is general in nature and is not legal advice; California and local laws change, and the configuration described is confirmed at the time of sale. All sales are subject to applicable federal, state and local law and to the buyer's eligibility to purchase.
