Does the Spike's Tactical Spikes Tactical Rare work with the FailZero AR9?

Lower Receiver
Spike's Tactical Spikes Tactical Rare Breed Crusader
from $436.50

Bolt Carrier Group
FailZero AR9
from $132.03
Spike's Tactical lower and FailZero bolt carrier group compatibility
Yes, they fit
The Spike's Tactical Spikes Tactical Rare Breed works with the FailZero AR9. 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 Spike's Tactical 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 Spike's Tactical Spikes Tactical Rare and any bolt carrier group
- This pairFailZero AR920%
- Aero Precision 5.56 BCG W/C158 BoltDoes not fit20%
Share of builds with the FailZero AR9 and any lower
- This pairSpike's Tactical Spikes Tactical Rare Breed4%
Spike's Tactical Spikes Tactical Rare
- Of lower picks
- 0%
- Median paid
- $437
FailZero AR9
- Of bolt carrier group picks
- 0.3%
- Median paid
- $131
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 Spike's Tactical 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
Upper Receiver
Pistol Grip
Stock & Brace
Suppressor
Barrel
Handguard

Midwest Industries SIG MPX M-LOK
Fits both
Spike's Tactical Spikes vs FailZero AR9: specs and prices
| Spike's Tactical Spikes | FailZero AR9 | |
|---|---|---|
| Best price | $436.50 at KY Gun Company | $132.03 at BattleHawk Armory |
| Stores | 0 of 1 in stock | 4 of 4 in stock |
| Assembly | Stripped | n/a |
| Platform | AR-9 | n/a |
| Caliber | 9mm | n/a |
| Finish | Hardcoat Anodized | Nitride |
| Color | Black | n/a |
| Cartridge | n/a | 9mm |
| Style | n/a | Pistol Caliber Blow Back Carrier |
Both for $568.53 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
- Spike's Tactical Spikes Tactical Rare: lowest $436.50 on Jul 5, highest $436.50 on Jul 5 over the last 90 days.
- FailZero AR9: lowest $132.03 on Jul 5, highest $179.99 on Aug 28 over the last 90 days.
Bolt Carrier Groups frequently paired with the Spike's Tactical Spikes Tactical Rare
Most picked next to it in real builds. Only parts our rules say fit the Spike's Tactical Spikes Tactical Rare are listed.
Lower Receivers frequently paired with the FailZero AR9
Most picked next to it in real builds. Only parts our rules say fit the FailZero AR9 are listed.




Spike's Tactical Stripped
Fits, check noteCheck fit











