Does the PSA 9mm Billet Slick Side work with the Diamondback Firearms?
Palmetto State Armory upper and Diamondback barrel compatibility
Yes, they fit
The PSA 9mm Billet Slick Side works with the Diamondback Firearms. 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 Palmetto State Armory upper and Diamondback barrel
Backed by thousands of qualified builds that have both an upper and a barrel.
Share of builds with the PSA 9mm Billet Slick Side and any barrel
- This pairDiamondback Firearms25%
Share of builds with the Diamondback Firearms and any upper
- This pairPSA 9mm Billet Slick Side9%
PSA 9mm Billet Slick Side
- Of upper picks
- 0%
- Median paid
- n/a
Diamondback Firearms
- Of barrel picks
- 0.2%
- Median paid
- $70
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 upper and Diamondback barrel
The part builders pick most often in each slot alongside these two, checked against both. Parts that conflict are left out.
Gas Block
Pistol Grip
Handguard

Daniel Defense MFR XL Free Float
Fits both
Stock & Brace
PSA 9mm Billet Slick Side vs Diamondback Firearms: specs and prices
| PSA 9mm Billet Slick Side | Diamondback Firearms | |
|---|---|---|
| Best price | n/a | $70.00 at BattleHawk Armory |
| Stores | n/a | 5 of 5 in stock |
| Assembly | Stripped | n/a |
| Platform | AR-9 | n/a |
| Caliber | 9mm | 5.56 NATO |
| Receiver Type | Slick Side | n/a |
| Gas System | n/a | Pistol |
| Length | n/a | 7 |
| Twist | n/a | 1:8 |
| Contour | n/a | HBAR |
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
- Diamondback Firearms: lowest $78.20 on Jul 5, highest $101.49 on Jul 7 over the last 90 days.
Barrels frequently paired with the PSA 9mm Billet Slick Side
Most picked next to it in real builds. Only parts our rules say fit the PSA 9mm Billet Slick Side are listed.
Upper Receivers frequently paired with the Diamondback Firearms
Most picked next to it in real builds. Only parts our rules say fit the Diamondback Firearms are listed.



















