Do Anderson Manufacturing lowers fit PSA uppers?
Anderson lower + PSA upper: yes, they fit
Yes. Anderson Manufacturing AR-15 lowers fit Palmetto State Armory (PSA) AR-15 uppers. Both are AR-15 size receivers. A real mil-spec keeps AR-15 receivers from different makers close, though not exact, and fit problems show up most when the upper and lower come from different makers. We checked them with the rules the AR builder runs.
Fit comes from the same rules the AR builder runs on every part you add. Build data only ranks the setups; it never decides fit. Checked November 10, 2026.
Our take
Most built setup: the Anderson lower with the PSA Stripped upper.
PSA is the most picked upper brand on Anderson lowers.
Anderson made cheap AR-15 lowers, uppers and parts in huge volume out of Kentucky. Ruger bought the company in 2025 and is ending the Anderson brand, so what's left is old stock.
Founded 1983, Hebron, Kentucky, Made in USA
PSA sells affordable AR lowers, uppers, BCGs and complete rifles, and it makes them in house from forging to finished part.
Founded 2008, Columbia, South Carolina, Made in USA
Anderson Manufacturing lowers and PSA uppers by platform
Each row is checked on the most built part of that platform from each brand.
| Platform | Fit |
|---|---|
| AR-15 | Yes, they fit |
AR-15: yes, they fit
Both are AR-15 size receivers. An AR-15 lower takes the upper's .223 Wylde.
Checked on this Anderson Manufacturing lower
Anderson Manufacturing Am-15 Lower Receiver$129.99, out of stockand this PSA upper
PSA 18" Rifle Length .223 Wylde 1:7 SS 15" Lightweight$389.99Most built Anderson Manufacturing lowers and PSA uppers setups
Ranked by how often builders pick the exact pair. Only pairs our rules pass are listed.
#1Yes, they fit3% of these buildsCheck fit
#2Yes, they fit3% of these buildsCheck fit
#3Yes, they fit3% of these buildsCheck fit
#4Yes, they fit3% of these buildsCheck fit
#5Yes, they fit3% of these buildsCheck fit
#6Yes, they fit3% of these buildsCheck fit
#7Yes, they fit3% of these buildsCheck fit
#8Yes, they fit3% of these buildsCheck fit
What Anderson Manufacturing and PSA say
Anderson Manufacturing: Anderson made AR lowers, uppers, parts and complete rifles in volume, with every rifle assembled at its Kentucky plant.
PSA: PSA owns its supply chain, including Spartan Forging and DC Machine, from forging the receivers to finishing the muzzle brake.
PSA: The KS-47 Gen2 bolt has two lugs reshaped so it feeds from AK magazines.
Fit is judged from the specs retailers list, which can be missing or wrong. Confirm with the manufacturer before you buy, and have a qualified gunsmith check any build before you fire it.
Other uppers builders put on Anderson Manufacturing lowers
- Anderson lowers + Aero uppersSecond most picked
Other lowers under PSA uppers
- PSA lowers + PSA uppersMost picked
- Aero lowers + PSA uppersSecond most picked
- Smith & Wesson lowers + PSA uppersThird most picked
- Wilson Combat lowers + PSA uppersFourth most picked
- Spike's lowers + PSA uppersFifth most picked
- Sharps Bros lowers + PSA uppersSixth most picked
- Griffin Armament lowers + PSA uppersSeventh most picked
- LMT lowers + PSA uppersEighth most picked
Anderson Manufacturing lowers and PSA uppers: questions builders ask
Will a PSA upper fit an Anderson lower?
Yes. Anderson AR-15 lowers fit PSA AR-15 uppers. Both are AR-15 size receivers.
Do I need a matched upper and lower?
A real mil-spec keeps AR-15 receivers from different makers close, though not exact, and fit problems show up most when the upper and lower come from different makers.
Why might a PSA upper feel loose or tight on an Anderson lower?
Some play between an AR-15 upper and lower is common, but it can get excessive when the two come from different makers, and a tension screw or an Accu-Wedge takes it up.