Does the PSA Lower Magpul ACS-L Edition work with the Radical Firearms 5.56 Barreled Upper?
Palmetto State Armory lower and Radical Firearms upper compatibility
Yes, they fit
The PSA Lower Magpul ACS-L Edition works with the Radical Firearms 5.56 Barreled Upper. Our compatibility rules found no conflict between them.
No one has built this exact setup yet, but Palmetto State Armory lowers with Radical Firearms uppers are a common pairing.
Counted from real GunPartPicker builds: parts lists people put together while planning to buy.
Checked by the same rules the AR builder runs on every part you add: caliber, frame size, receiver pattern, thread pitch and gas length.
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.
How often builders pair the Palmetto State Armory lower and Radical Firearms upper
Backed by tens of thousands of qualified builds that have both a lower and an upper.
Share of builds with the Radical Firearms 5.56 Barreled Upper and any lower
PSA Lower Magpul ACS-L Edition
Not in enough builds yet to report.
Radical Firearms 5.56 Barreled Upper
- Of upper picks
- 1.2%
- Median paid
- n/a
How we count ⌄
These shares come from GunPartPicker's build data: real parts lists people put together while planning a purchase, not sales or surveys. A build counts a part only when it is the final pick for its slot, so parts that were swapped out never count. Fit never comes from these numbers; it comes from our compatibility rules alone.
Frequently built with the Palmetto State Armory lower and Radical Firearms upper
The part builders pick most often in each slot alongside these two, checked against both. Parts that conflict are left out.
Handguard

TacFire Maximize Your 's Potential
Fits both
Gas Block
Barrel
Bolt Carrier Group
Trigger
Pistol Grip
PSA Lower Magpul ACS-L Edition vs Radical Firearms 5.56 Barreled: specs and prices
| PSA Lower Magpul ACS-L | Radical Firearms 5.56 | |
|---|---|---|
| Best price | n/a | n/a |
| Stores | n/a | n/a |
| Assembly | Complete | Complete |
| Platform | AR-15 | AR-15 |
| Finish | Hardcoat Anodized | n/a |
| Color | OD Green | n/a |
| Gas System Length | n/a | Mid-Length |
| Caliber | n/a | 5.56 NATO |
| Length | n/a | 16 |
Upper Receivers most paired with Palmetto State Armory lowers
The PSA Lower Magpul ACS-L Edition is not in enough builds yet, so these are the most picked next to any Palmetto State Armory lower. Only parts our rules say fit the PSA Lower Magpul ACS-L Edition are listed.
Lower Receivers frequently paired with the Radical Firearms 5.56 Barreled Upper
Most picked next to it in real builds. Only parts our rules say fit the Radical Firearms 5.56 Barreled Upper are listed.





















