Does the FN America FN 16 Mid-Length 5.56mm work with the KAK Industry K-SPEC BCG w/Side Vent?

Barrel
FN America FN 16 Mid-Length 5.56mm
from $199.73

Bolt Carrier Group
KAK Industry K-SPEC BCG w/Side Vent 5.56x45mm Chrome &
from $147.49
FN America barrel and KAK Industry bolt carrier group compatibility
Yes, they fit
The FN America FN 16 Mid-Length 5.56mm works with the KAK Industry K-SPEC BCG w/Side Vent 5.56x45mm. 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 FN America barrel and KAK Industry bolt carrier group
Backed by thousands of qualified builds that have both a barrel and a bolt carrier group.
Share of builds with the FN America FN 16 Mid-Length 5.56mm and any bolt carrier group
Share of builds with the KAK Industry K-SPEC BCG w/Side Vent and any barrel
- This pairFN America FN 16 Mid-Length 5.56mm60%
FN America FN 16 Mid-Length 5.56mm
- Of barrel picks
- 2.1%
- Median paid
- $200
KAK Industry K-SPEC BCG w/Side Vent
- Of bolt carrier group picks
- 0%
- Median paid
- $180
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 FN America barrel and KAK Industry bolt carrier group
The part builders pick most often in each slot alongside these two, checked against both. Parts that conflict are left out.
FN America FN 16 Mid-Length vs KAK Industry K-SPEC BCG w/Side: specs and prices
| FN America FN 16 Mid-Length | KAK Industry K-SPEC BCG | |
|---|---|---|
| Best price | $199.73 at KY Gun Company | $179.99 at Brownells |
| Stores | 7 of 8 in stock | 2 of 3 in stock |
| Caliber | 5.56 NATO | n/a |
| Gas System | Mid-Length | n/a |
| Length | 16 | n/a |
| Twist | 1:7 | n/a |
| Contour | M4 | n/a |
| Thread | 1/2x28 | n/a |
| Cartridge | n/a | 5.56 NATO |
| Style | n/a | Forged |
| Finish | n/a | Phosphate |
Both for $379.72 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
- FN America FN 16 Mid-Length 5.56mm: lowest $199.73 on Jul 11, highest $298.99 on Aug 26 over the last 90 days.
- KAK Industry K-SPEC BCG w/Side Vent: lowest $144.49 on Jul 5, highest $180.99 on Jul 11 over the last 90 days.
Bolt Carrier Groups frequently paired with the FN America FN 16 Mid-Length 5.56mm
Most picked next to it in real builds. Only parts our rules say fit the FN America FN 16 Mid-Length 5.56mm are listed.
Barrels most paired with KAK Industry bolt carrier groups
The KAK Industry K-SPEC BCG w/Side Vent is not in enough builds yet, so these are the most picked next to any KAK Industry bolt carrier group. Only parts our rules say fit the KAK Industry K-SPEC BCG w/Side Vent are listed.






















