Does the PWS MK116 MOD 2-M RIFLE 338ARC 16.1 LS work with the Wilson Combat Bolt Carrier Assy 5.56?

Upper Receiver
PWS MK116 MOD 2-M RIFLE 338ARC 16.1 LS FRC COMP
from $1999.95

Bolt Carrier Group
Wilson Combat Bolt Carrier Assy 5.56 NATO Polished Nitride
from $150.49
Primary Weapon Systems upper and Wilson Combat bolt carrier group compatibility
They fit, with a catch
The PWS MK116 MOD 2-M RIFLE 338ARC 16.1 LS FRC COMP works with the Wilson Combat Bolt Carrier Assy 5.56 NATO, with one thing to check: Bolt Carrier Group (5.56 NATO) has a 5.56 / .223 bolt; a 6.8 SPC II build needs a 6.8 SPC / .224 Valkyrie bolt.
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 Primary Weapon Systems upper and Wilson Combat bolt carrier group
Backed by thousands of qualified builds that have both an upper and a bolt carrier group.
Share of builds with the Wilson Combat Bolt Carrier Assy 5.56 and any upper
PWS MK116 MOD 2-M RIFLE 338ARC 16.1 LS
Not in enough builds yet to report.
Wilson Combat Bolt Carrier Assy 5.56
- Of bolt carrier group picks
- 5.8%
- Median paid
- $153
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 Primary Weapon Systems upper and Wilson Combat 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

Aero Precision Breach Small Levers
Fits both
Pistol Grip
Stock & Brace
Suppressor
Gas Block
PWS MK116 MOD 2-M RIFLE 338ARC vs Wilson Combat Bolt Carrier: specs and prices
| PWS MK116 MOD 2-M RIFLE | Wilson Combat Bolt Carrier | |
|---|---|---|
| Best price | $1999.95 at BattleHawk Armory | $150.49 at Ammunition Depot |
| Stores | 0 of 1 in stock | 7 of 8 in stock |
| Assembly | Complete | n/a |
| Platform | AR-15 | n/a |
| Gas System Length | Rifle | n/a |
| Caliber | 6.8 SPC II | n/a |
| Length | 16.1 | n/a |
| Cartridge | n/a | 5.56 NATO |
| Style | n/a | M16 Bolt Carrier |
| Finish | n/a | Nitride |
Both for $2150.44 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
- PWS MK116 MOD 2-M RIFLE 338ARC 16.1 LS: lowest $1999.95 on Jul 5, highest $1999.95 on Jul 5 over the last 90 days.
- Wilson Combat Bolt Carrier Assy 5.56: lowest $150.49 on Jul 5, highest $191.99 on Aug 2 over the last 90 days.
Bolt Carrier Groups most paired with Primary Weapon Systems uppers
The PWS MK116 MOD 2-M RIFLE 338ARC 16.1 LS is not in enough builds yet, so these are the most picked next to any Primary Weapon Systems upper. Only parts our rules say fit the PWS MK116 MOD 2-M RIFLE 338ARC 16.1 LS are listed.

PSA 5.56 Full-Auto Nitride MPI
Fits, check noteCheck fit
Bravo Company
Fits, check noteCheck fit
PSA Custom Fathers of Freedom 5.56 Full Auto Profile
Fits, check noteCheck fit
ODIN Works 6.5 Grendel Type II
Fits, check noteCheck fit
Upper Receivers frequently paired with the Wilson Combat Bolt Carrier Assy 5.56
Most picked next to it in real builds. Only parts our rules say fit the Wilson Combat Bolt Carrier Assy 5.56 are listed.













