Does the Daniel Defense 14.5" 5.56 M4A1 Upper work with the Rosco Manufacturing 5.56/300BLK?
Upper Receiver
Daniel Defense 14.5" 5.56 M4A1 Upper
from $1544.00
Bolt Carrier Group
Rosco Manufacturing 5.56/300BLK
from $144.00
Daniel Defense upper and Rosco Manufacturing bolt carrier group compatibility
Yes, they fit
The Daniel Defense 14.5" 5.56 M4A1 Upper works with the Rosco Manufacturing 5.56/300BLK. Our compatibility rules found no conflict between them.
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 Daniel Defense 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 Daniel Defense 14.5" 5.56 M4A1 Upper and any bolt carrier group
Share of builds with the Rosco Manufacturing 5.56/300BLK and any upper
Daniel Defense 14.5" 5.56 M4A1 Upper
- Of upper picks
- 1.6%
- Median paid
- $1499
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 Daniel Defense 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.
Charging Handle
Radian Raptor & Talon Safety Selector Combo
Unconfirmed
Lower Receiver
Fits both
Stock & Brace
Suppressor
Pistol Grip
Daniel Defense 14.5" 5.56 M4A1 vs Rosco Manufacturing: specs and prices
| Daniel Defense 14.5" 5.56 | Rosco Manufacturing | |
|---|---|---|
| Best price | $1544.00 at Primary Arms | $159.00 at BattleHawk Armory |
| Stores | 3 of 6 in stock | 4 of 5 in stock |
| Assembly | Complete | n/a |
| Platform | AR-15 | n/a |
| Gas System Length | Carbine | n/a |
| Caliber | 5.56 NATO | n/a |
| Length | 14.5 | n/a |
| Cartridge | n/a | 5.56 NATO |
| Finish | n/a | Phosphate |
Both for $1703.00 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.
Daniel Defense 14.5" 5.56 M4A1 Upper
Price history, last 90 days
- Daniel Defense 14.5" 5.56 M4A1 Upper: lowest $1339.99 on Jul 21, highest $1621.00 on Aug 2 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 Daniel Defense 14.5" 5.56 M4A1 Upper
Most picked next to it in real builds. Only parts our rules say fit the Daniel Defense 14.5" 5.56 M4A1 Upper 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.
