Does the Geissele MK16 Urg-I 5.56mm work with the FailZero?
Geissele upper and FailZero bolt carrier group compatibility
Yes, they fit
The Geissele MK16 Urg-I 5.56mm works with the FailZero. 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 Geissele 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 Geissele MK16 Urg-I 5.56mm and any bolt carrier group
- This pairFailZero4%
Share of builds with the FailZero and any upper
- This pairGeissele MK16 Urg-I 5.56mm33%
Geissele MK16 Urg-I 5.56mm
- Of upper picks
- 0.3%
- Median paid
- $1191
FailZero
- Of bolt carrier group picks
- 0%
- Median paid
- n/a
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 Geissele 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
Pistol Grip
Geissele MK16 Urg-I 5.56mm vs FailZero: specs and prices
| Geissele MK16 Urg-I 5.56mm | FailZero | |
|---|---|---|
| Best price | $1479.99 at Palmetto State Armory | $140.70 at BattleHawk Armory |
| Stores | 1 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 | 11.5 | n/a |
| Cartridge | n/a | 5.56 NATO |
| Style | n/a | M16 |
| Finish | n/a | Nickel Boron |
Both for $1620.69 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.
Geissele MK16 Urg-I 5.56mm
Price history, last 90 days
- Geissele MK16 Urg-I 5.56mm: lowest $1191.41 on Jul 6, highest $1525.00 on Jul 27 over the last 90 days.
- FailZero: lowest $140.70 on Jul 5, highest $189.99 on Aug 29 over the last 90 days.
Bolt Carrier Groups frequently paired with the Geissele MK16 Urg-I 5.56mm
Most picked next to it in real builds. Only parts our rules say fit the Geissele MK16 Urg-I 5.56mm are listed.
Upper Receivers most paired with FailZero bolt carrier groups
The FailZero is not in enough builds yet, so these are the most picked next to any FailZero bolt carrier group. Only parts our rules say fit the FailZero are listed.
