Does the PSA 18" Rifle-Length 6.5 Grendel 1/8 work with the Aero Precision 5.56 BCG W/C158 Bolt?
Upper Receiver
PSA 18" Rifle-Length 6.5 Grendel 1/8 Stainless Steel 15"
from $379.99
Bolt Carrier Group
Aero Precision 5.56 BCG W/C158 Bolt
from $148.99
Palmetto State Armory upper and Aero Precision bolt carrier group compatibility
They fit, with a catch
The PSA 18" Rifle-Length 6.5 Grendel 1/8 Stainless works with the Aero Precision 5.56 BCG W/C158 Bolt, with one thing to check: Bolt Carrier Group (5.56 NATO) has a 5.56 / .223 bolt; a 6.5 Grendel build needs a 6.5 Grendel / 6mm ARC bolt.
No one has built this exact setup yet, but Palmetto State Armory uppers with Aero Precision bolt carrier groups 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 upper and Aero Precision bolt carrier group
Backed by thousands of qualified builds that have both an upper and a bolt carrier group.
Share of builds with the Aero Precision 5.56 BCG W/C158 Bolt and any upper
PSA 18" Rifle-Length 6.5 Grendel 1/8
- Of upper picks
- 0%
- Median paid
- $380
Aero Precision 5.56 BCG W/C158 Bolt
- Of bolt carrier group picks
- 8.4%
- Median paid
- $132
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 Aero Precision bolt carrier group
The part builders pick most often in each slot alongside these two, checked against both. Parts that conflict are left out.
Charging Handle
Aero Precision Breach Small Levers
Fits both
Lower Receiver
Unconfirmed
Gas Block
Stock & Brace
Pistol Grip
Barrel
PSA 18" Rifle-Length 6.5 vs Aero Precision 5.56 BCG W/C158: specs and prices
| PSA 18" Rifle-Length 6.5 | Aero Precision 5.56 BCG | |
|---|---|---|
| Best price | $379.99 at Palmetto State Armory | $148.99 at KY Gun Company |
| Stores | 1 of 1 in stock | 0 of 6 in stock |
| Assembly | Complete | n/a |
| Platform | AR-15 | n/a |
| Gas System Length | Rifle | n/a |
| Caliber | 6.5 Grendel | n/a |
| Length | 18 | n/a |
| Cartridge | n/a | 5.56 NATO |
| Finish | n/a | Black |
Both for $528.98 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.
PSA 18" Rifle-Length 6.5 Grendel 1/8 Stainless
- Palmetto State Armory$379.99
Price history, last 90 days
- PSA 18" Rifle-Length 6.5 Grendel 1/8: lowest $379.99 on Jul 5, highest $379.99 on Jul 5 over the last 90 days.
- Aero Precision 5.56 BCG W/C158 Bolt: lowest $131.53 on Jul 6, highest $149.99 on Jul 12 over the last 90 days.
Bolt Carrier Groups most paired with Palmetto State Armory uppers
The PSA 18" Rifle-Length 6.5 Grendel 1/8 is not in enough builds yet, so these are the most picked next to any Palmetto State Armory upper. Only parts our rules say fit the PSA 18" Rifle-Length 6.5 Grendel 1/8 are listed.
PSA 5.56 Full-Auto Nitride MPI
Fits, check noteCheck fit
Bravo Company
Fits, check noteCheck fit
Wilson Combat Bolt Carrier Assy 5.56 NATO Polished
Fits, check noteCheck fit
PSA Custom Fathers of Freedom 5.56 Full Auto Profile
Fits, check noteCheck fit
Cryptic Coatings 5.56 NATO
Fits, check noteCheck fit
San Tan Tactical Enhanced
Fits, check noteCheck fit
Upper Receivers frequently paired with the Aero Precision 5.56 BCG W/C158 Bolt
Most picked next to it in real builds. Only parts our rules say fit the Aero Precision 5.56 BCG W/C158 Bolt are listed.
