Does the Daniel Defense M4A1 FSP 5.56x45mm work with the Daniel Defense Bolt/carrier Group?
Upper Receiver
Daniel Defense M4A1 FSP 5.56x45mm 14.5"BBL Stripped Upper
from $899.99
Bolt Carrier Group
Daniel Defense Bolt/carrier Group
from $228.00
Daniel Defense upper and Daniel Defense bolt carrier group compatibility
Yes, they fit
The Daniel Defense M4A1 FSP 5.56x45mm 14.5"BBL works with the Daniel Defense Bolt/carrier Group. 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 Daniel Defense upper and Daniel Defense 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 M4A1 FSP 5.56x45mm and any bolt carrier group
- This pairDaniel Defense Bolt/carrier Group14%
Share of builds with the Daniel Defense Bolt/carrier Group and any upper
- This pairDaniel Defense M4A1 FSP 5.56x45mm 14.5"BBL0.9%
Daniel Defense M4A1 FSP 5.56x45mm
- Of upper picks
- 0%
- Median paid
- $825
Daniel Defense Bolt/carrier Group
- Of bolt carrier group picks
- 1.2%
- Median paid
- $224
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 Daniel Defense 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
Stock & Brace
Pistol Grip
Lower Receiver
Fits both
Barrel
Daniel Defense M4A1 FSP vs Daniel Defense Bolt/carrier: specs and prices
| Daniel Defense M4A1 FSP | Daniel Defense Bolt/carrier | |
|---|---|---|
| Best price | $899.99 at Brownells | $228.00 at BattleHawk Armory |
| Stores | 1 of 1 in stock | 7 of 9 in stock |
| Assembly | Complete | n/a |
| Platform | AR-15 | n/a |
| Caliber | 5.56 NATO | n/a |
| Receiver Type | M4 | n/a |
| Length | 14.5 | n/a |
| Cartridge | n/a | 5.56 NATO |
| Style | n/a | M16 Bolt Carrier |
| Finish | n/a | Matte Black |
| Weight | n/a | 11 |
Both for $1127.99 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
- Daniel Defense M4A1 FSP 5.56x45mm: lowest $749.99 on Jul 6, highest $899.99 on Jul 14 over the last 90 days.
- Daniel Defense Bolt/carrier Group: lowest $193.80 on Jul 10, highest $247.00 on Aug 2 over the last 90 days.
Bolt Carrier Groups frequently paired with the Daniel Defense M4A1 FSP 5.56x45mm
Most picked next to it in real builds. Only parts our rules say fit the Daniel Defense M4A1 FSP 5.56x45mm are listed.
Upper Receivers frequently paired with the Daniel Defense Bolt/carrier Group
Most picked next to it in real builds. Only parts our rules say fit the Daniel Defense Bolt/carrier Group are listed.
