Does the Aero Precision M4A1 Clone work with the FailZero Fail Zero .450 Bushmaster?

Lower Receiver
Aero Precision M4A1 Clone
from $129.99

Bolt Carrier Group
FailZero Fail Zero .450 Bushmaster
from $129.74
Aero Precision lower and FailZero bolt carrier group compatibility
Yes, they fit
The Aero Precision M4A1 Clone works with the FailZero Fail Zero .450 Bushmaster. Our compatibility rules found no conflict between them.
This exact setup has been built more than once on GunPartPicker.
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 Aero Precision lower and FailZero bolt carrier group
Backed by thousands of qualified builds that have both a lower and a bolt carrier group.
Share of builds with the Aero Precision M4A1 Clone and any bolt carrier group
- This pairFailZero Fail Zero .450 Bushmaster2%
Share of builds with the FailZero Fail Zero .450 Bushmaster and any lower
- This pairAero Precision M4A1 Clone5%
Aero Precision M4A1 Clone
- Of lower picks
- 2.1%
- Median paid
- $130
FailZero Fail Zero .450 Bushmaster
- Of bolt carrier group picks
- 0.9%
- Median paid
- $130
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 Aero Precision lower 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
Pistol Grip
Upper Receiver
Gas Block
Stock & Brace
Aero Precision M4A1 Clone vs FailZero Fail Zero .450: specs and prices
| Aero Precision M4A1 Clone | FailZero Fail Zero .450 | |
|---|---|---|
| Best price | $129.99 at Brownells | $149.39 at BattleHawk Armory |
| Stores | 0 of 3 in stock | 5 of 7 in stock |
| Assembly | Stripped | n/a |
| Platform | AR-15 | n/a |
| Caliber | 5.56 NATO | n/a |
| Trigger Pin | .154 | n/a |
| Finish | Hardcoat Anodized | Nickel Boron |
| Color | Black | n/a |
| Cartridge | n/a | 6.5 Grendel |
| Style | n/a | M16 Bolt Carrier |
| Weight | 8.35 | n/a |
Both for $279.38 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
- Aero Precision M4A1 Clone: lowest $111.87 on Aug 18, highest $129.99 on Jul 5 over the last 90 days.
- FailZero Fail Zero .450 Bushmaster: lowest $129.74 on Jul 6, highest $189.99 on Jul 27 over the last 90 days.
Bolt Carrier Groups frequently paired with the Aero Precision M4A1 Clone
Most picked next to it in real builds. Only parts our rules say fit the Aero Precision M4A1 Clone are listed.
Lower Receivers frequently paired with the FailZero Fail Zero .450 Bushmaster
Most picked next to it in real builds. Only parts our rules say fit the FailZero Fail Zero .450 Bushmaster are listed.


















