Does the ATI Alpha Maxx Stripped Upper Set work with the PSA Upper 5.56 16" Mid-Length 1/7?

Lower Receiver
ATI Alpha Maxx Stripped Upper Set
from $57.29

Upper Receiver
PSA Upper 5.56 16" Mid-Length 1/7 Nitride 13.5" M-LOK w/NiBx
from $369.99
American Tactical Imports lower and Palmetto State Armory upper compatibility
Yes, they fit
The ATI Alpha Maxx Stripped Upper Set works with the PSA Upper 5.56 16" Mid-Length 1/7 Nitride 13.5". Our compatibility rules found no conflict between them.
This exact setup is in a real GunPartPicker build.
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 American Tactical Imports lower and Palmetto State Armory upper
Backed by tens of thousands of qualified builds that have both a lower and an upper.
Share of builds with the PSA Upper 5.56 16" Mid-Length 1/7 and any lower
- This pairATI Alpha Maxx Stripped Upper Set14%
ATI Alpha Maxx Stripped Upper Set
- Of lower picks
- 0%
- Median paid
- $55
PSA Upper 5.56 16" Mid-Length 1/7
- Of upper picks
- 0%
- Median paid
- $370
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 American Tactical Imports lower and Palmetto State Armory upper
The part builders pick most often in each slot alongside these two, checked against both. Parts that conflict are left out.
Pistol Grip
Stock & Brace
Bolt Carrier Group

PSA 5.56 Full-Auto Nitride MPI
Fits both
Suppressor
Handguard

Bravo Company KMR Alpha Keymod
Fits both
ATI Alpha Maxx Stripped Upper vs PSA Upper 5.56 16" Mid-Length: specs and prices
| ATI Alpha Maxx Stripped | PSA Upper 5.56 16" | |
|---|---|---|
| Best price | $57.29 at BattleHawk Armory | $369.99 at Palmetto State Armory |
| Stores | 0 of 1 in stock | 1 of 1 in stock |
| Assembly | Stripped | Complete |
| Platform | AR-15 | AR-15 |
| Color | Black | n/a |
| Gas System Length | n/a | Mid-Length |
| Caliber | n/a | 5.56 NATO |
| Length | n/a | 16 |
Both for $427.28 at today's best prices.
Today's best prices and 90 day price history
Every store we track for each part, cheapest in stock first. Prices are checked through the day.
Price history, last 90 days
- ATI Alpha Maxx Stripped Upper Set: lowest $55.57 on Aug 13, highest $57.29 on Aug 6 over the last 90 days.
- PSA Upper 5.56 16" Mid-Length 1/7: lowest $369.99 on Jul 12, highest $369.99 on Jul 12 over the last 90 days.
Upper Receivers most paired with American Tactical Imports lowers
The ATI Alpha Maxx Stripped Upper Set is not in enough builds yet, so these are the most picked next to any American Tactical Imports lower. Only parts our rules say fit the ATI Alpha Maxx Stripped Upper Set are listed.
Lower Receivers frequently paired with the PSA Upper 5.56 16" Mid-Length 1/7
Most picked next to it in real builds. Only parts our rules say fit the PSA Upper 5.56 16" Mid-Length 1/7 are listed.
















