PSA 18" Rifle Length .223 Wylde 1/7 Stainless Steel 15" Lightweight M-LOK Upper With BCG, CH, & MBUS Sight Set - 516446673
Click to see full view
Palmetto State Armory
Overview
The PSA 18" Rifle Length .223 Wylde Upper Receiver is a complete assembly designed for AR-15 platforms, featuring an 18-inch barrel with a 1:7 twist rate that stabilizes a wide range of bullet weights. The rifle-length gas system ensures smooth cycling and reduced recoil, making it suitable for a variety of shooting applications. This upper is commonly used in builds that prioritize versatility with .223 Wylde caliber, allowing for both .223 Remington and 5.56 NATO ammunition compatibility.
Specifications
PSA 18" Rifle Length .223 Wylde 1/7 Stainless Steel 15" Lightweight M-LOK Upper With BCG, CH, & MBUS Sight Set - 516446673
Build history on GunPartPicker
Builders have been adding the PSA 18" Rifle Length .223 Wylde 1/7 Stainless Steel 15" Lightweight M-LOK Upper With BCG, CH, & MBUS Sight Set - 516446673 to their builds on GunPartPicker since February 2026. All time, it ranks #380 of the 1,656 upper receivers builders have added.
Availability is good: it was in stock at one retailer or another nearly every day in September 2026, and today the one retailer we track has it in stock. Prices barely moved in September 2026, holding around $399.99, so there haven't been real sales lately. Buying today, the lowest price is $399.99 at Palmetto State Armory, which matches the best price we saw in September.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
Not sure which upper receiver to pick?
We ranked every upper receiver by how often it shows up in real builds on GunPartPicker.
Read the guide: Most Popular AR-15 Upper Receivers →Check it against the live catalog:
Frequently Built With
The part most often added in each category by the builds that include this one
Spikes Tactical Upper/Lower Receiver .223 Remington AR Lower, Flat Dark Earth - STS1512
HEXMAG Rubber AR-15 Tactical Pistol Grip, Black - HX-HTG-Black
Rise Armament Ra-524 Blitz Performance Trigger Drop-In
Hiperfire Hiperswitch 60 Ambidextrous Safety Selector Red
Timber Creek Outdoors AR-15 Extended Magazine Release - Red
Fortis SHIFT Vertical Grip - M-LOK
No reviews yet. Be the first to review this product!