Does the Daniel Defense 14.5" 5.56 M4A1 Upper work with the FailZero Exo Coated?
Upper Receiver
Daniel Defense 14.5" 5.56 M4A1 Upper
from $1544.00
Bolt Carrier Group
FailZero Exo Coated
from $128.52
Daniel Defense upper and FailZero bolt carrier group compatibility
Yes, they fit
The Daniel Defense 14.5" 5.56 M4A1 Upper works with the FailZero Exo Coated. 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 FailZero 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
- This pairFailZero Exo Coated0.5%
Share of builds with the FailZero Exo Coated and any upper
- This pairDaniel Defense 14.5" 5.56 M4A1 Upper5%
Daniel Defense 14.5" 5.56 M4A1 Upper
- Of upper picks
- 1.6%
- Median paid
- $1499
FailZero Exo Coated
- Of bolt carrier group picks
- 0.2%
- Median paid
- $133
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 FailZero 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 FailZero Exo Coated: specs and prices
| Daniel Defense 14.5" 5.56 | FailZero Exo Coated | |
|---|---|---|
| Best price | $1544.00 at Primary Arms | $128.52 at KY Gun Company |
| 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 |
| Style | n/a | AR-15 Bolt Carrier |
| Finish | n/a | Nickel Boron |
Both for $1672.52 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.
- FailZero Exo Coated: lowest $128.52 on Jul 5, highest $162.49 on Jul 7 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 FailZero Exo Coated
Most picked next to it in real builds. Only parts our rules say fit the FailZero Exo Coated are listed.
