Does the Radian Weapons AX556 Billet work with the Expo Arms 5.56 NATO /?
Lower Receiver
Radian Weapons AX556 Billet
from $514.95
Bolt Carrier Group
Expo Arms 5.56 NATO /
from $149.95
Radian lower and Expo Arms bolt carrier group compatibility
Yes, they fit
The Radian Weapons AX556 Billet works with the Expo Arms 5.56 NATO /. 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 Radian lower and Expo Arms bolt carrier group
Backed by thousands of qualified builds that have both a lower and a bolt carrier group.
Share of builds with the Radian Weapons AX556 Billet and any bolt carrier group
- This pairExpo Arms 5.56 NATO /5%
- Rubber City Armory TitaniumDoes not fit5%
Share of builds with the Expo Arms 5.56 NATO / and any lower
- This pairRadian Weapons AX556 Billet5%
- Foxtrot Mike Products FM9 Premium 9mmDoes not fit5%
Radian Weapons AX556 Billet
- Of lower picks
- 0.1%
- Median paid
- $490
Expo Arms 5.56 NATO /
- Of bolt carrier group picks
- 0.3%
- Median paid
- $150
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 Radian lower and Expo Arms bolt carrier group
The part builders pick most often in each slot alongside these two, checked against both. Parts that conflict are left out.
Pistol Grip
Charging Handle
Handguard
Upper Receiver
Fits both
Stock & Brace
Suppressor
Barrel
Muzzle Device
Radian Weapons AX556 Billet vs Expo Arms 5.56 NATO /: specs and prices
| Radian Weapons AX556 Billet | Expo Arms 5.56 NATO / | |
|---|---|---|
| Best price | $514.95 at Brownells | $149.95 at Primary Arms |
| Stores | 6 of 9 in stock | 1 of 1 in stock |
| Assembly | Stripped | n/a |
| Platform | AR-15 | n/a |
| Caliber | Multi | n/a |
| Trigger Pin | .154 | n/a |
| Finish | Hardcoat Anodized | Chrome |
| Color | Black | n/a |
| Cartridge | n/a | 5.56 NATO |
| Style | n/a | M16 Bolt Carrier |
Both for $664.90 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
- Radian Weapons AX556 Billet: lowest $514.95 on Jul 5, highest $533.99 on Sep 12 over the last 90 days.
- Expo Arms 5.56 NATO /: lowest $149.95 on Jul 7, highest $149.95 on Jul 7 over the last 90 days.
Bolt Carrier Groups frequently paired with the Radian Weapons AX556 Billet
Most picked next to it in real builds. Only parts our rules say fit the Radian Weapons AX556 Billet are listed.
Lower Receivers frequently paired with the Expo Arms 5.56 NATO /
Most picked next to it in real builds. Only parts our rules say fit the Expo Arms 5.56 NATO / are listed.
