Does the Radian Weapons Upper .300 AAC Blackout 9 work with the Rosco Manufacturing 5.56/300BLK?
Upper Receiver
Radian Weapons Upper .300 AAC Blackout 9 Barrel
from $1829.95
Bolt Carrier Group
Rosco Manufacturing 5.56/300BLK
from $144.00
Radian upper and Rosco Manufacturing bolt carrier group compatibility
Yes, they fit
The Radian Weapons Upper .300 AAC Blackout 9 Barrel works with the Rosco Manufacturing 5.56/300BLK. Our compatibility rules found no conflict between them.
No one has built this exact setup yet, but Radian uppers with Rosco Manufacturing 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 Radian upper and Rosco Manufacturing bolt carrier group
Backed by thousands of qualified builds that have both an upper and a bolt carrier group.
Share of builds with the Radian Weapons Upper .300 AAC Blackout 9 and any bolt carrier group
Share of builds with the Rosco Manufacturing 5.56/300BLK and any upper
Radian Weapons Upper .300 AAC Blackout 9
- Of upper picks
- 0.1%
- Median paid
- $1830
Rosco Manufacturing 5.56/300BLK
- Of bolt carrier group picks
- 0%
- Median paid
- $144
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 upper and Rosco Manufacturing bolt carrier group
The part builders pick most often in each slot alongside these two, checked against both. Parts that conflict are left out.
Stock & Brace
Lower Receiver
Noveske Rifleworks N4 Gen 4 Stripped
Fits both
Charging Handle
Suppressor
Handguard
Trigger
Rifle Scope
Radian Weapons Upper .300 AAC vs Rosco Manufacturing: specs and prices
| Radian Weapons Upper .300 | Rosco Manufacturing | |
|---|---|---|
| Best price | $1829.95 at Optics Planet | $159.00 at BattleHawk Armory |
| Stores | 2 of 4 in stock | 4 of 5 in stock |
| Assembly | Complete | n/a |
| Platform | AR-15 | n/a |
| Caliber | 300 Blackout | n/a |
| Length | 9 | n/a |
| Cartridge | n/a | 5.56 NATO |
| Finish | n/a | Phosphate |
Both for $1988.95 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.
Radian Weapons Upper .300 AAC Blackout 9 Barrel
Price history, last 90 days
- Radian Weapons Upper .300 AAC Blackout 9: lowest $1829.95 on Jul 5, highest $2125.99 on Jul 11 over the last 90 days.
- Rosco Manufacturing 5.56/300BLK: lowest $144.00 on Jul 5, highest $174.99 on Sep 9 over the last 90 days.
Bolt Carrier Groups frequently paired with the Radian Weapons Upper .300 AAC Blackout 9
Most picked next to it in real builds. Only parts our rules say fit the Radian Weapons Upper .300 AAC Blackout 9 are listed.
Upper Receivers frequently paired with the Rosco Manufacturing 5.56/300BLK
Most picked next to it in real builds. Only parts our rules say fit the Rosco Manufacturing 5.56/300BLK are listed.
