Does the PSA 16" Classic M4 Freedom Upper No BCG work with the FailZero Fail Zero Lightweight /?
Upper Receiver
PSA 16" Classic M4 Freedom Upper No BCG & Charging Handle
from $169.99
Bolt Carrier Group
FailZero Fail Zero Lightweight /
from $153.99
Palmetto State Armory upper and FailZero bolt carrier group compatibility
Yes, they fit
The PSA 16" Classic M4 Freedom Upper No BCG & works with the FailZero Fail Zero Lightweight /. 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 Palmetto State Armory 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 PSA 16" Classic M4 Freedom Upper No BCG and any bolt carrier group
- This pairFailZero Fail Zero Lightweight /14%
Share of builds with the FailZero Fail Zero Lightweight / and any upper
- This pairPSA 16" Classic M4 Freedom Upper No BCG &8%
PSA 16" Classic M4 Freedom Upper No BCG
- Of upper picks
- 0%
- Median paid
- $200
FailZero Fail Zero Lightweight /
- Of bolt carrier group picks
- 0.1%
- Median paid
- $154
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 Palmetto State Armory 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
Lower Receiver
Fits both
Muzzle Device
Pistol Grip
Barrel
PSA 16" Classic M4 Freedom vs FailZero Fail Zero Lightweight: specs and prices
| PSA 16" Classic M4 Freedom | FailZero Fail Zero | |
|---|---|---|
| Best price | $169.99 at Palmetto State Armory | $186.74 at BattleHawk Armory |
| Stores | 1 of 1 in stock | 6 of 7 in stock |
| Assembly | Complete | n/a |
| Platform | AR-15 | n/a |
| Gas System Length | Carbine | n/a |
| Caliber | 5.56 NATO | n/a |
| Receiver Type | M4 | n/a |
| Length | 16 | n/a |
| Cartridge | n/a | 5.56 NATO |
| Style | n/a | Low Mass Bolt Carrier |
| Finish | n/a | Nickel Boron |
| Weight | n/a | 9.2 |
Both for $356.73 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
- PSA 16" Classic M4 Freedom Upper No BCG: lowest $149.99 on Jul 31, highest $199.99 on Jul 12 over the last 90 days.
- FailZero Fail Zero Lightweight /: lowest $153.99 on Jul 6, highest $234.99 on Jul 17 over the last 90 days.
Bolt Carrier Groups most paired with Palmetto State Armory uppers
The PSA 16" Classic M4 Freedom Upper No BCG is not in enough builds yet, so these are the most picked next to any Palmetto State Armory upper. Only parts our rules say fit the PSA 16" Classic M4 Freedom Upper No BCG are listed.
Upper Receivers frequently paired with the FailZero Fail Zero Lightweight /
Most picked next to it in real builds. Only parts our rules say fit the FailZero Fail Zero Lightweight / are listed.
