Does the PWS MK116 MOD 2-M RIFLE 338ARC 16.1 LS work with the PSA 5.56 Full-Auto Nitride MPI?

PWS MK116 MOD 2-M RIFLE 338ARC 16.1 LS FRC COMP

Upper Receiver

PWS MK116 MOD 2-M RIFLE 338ARC 16.1 LS FRC COMP

from $1999.95

PSA AR-15 Bolt Carrier Group 5.56 Full-Auto Nitride MPI - 516446953

Bolt Carrier Group

PSA 5.56 Full-Auto Nitride MPI

from $89.99

Primary Weapon Systems upper and Palmetto State Armory 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 PSA 5.56 Full-Auto Nitride MPI, 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 Palmetto State Armory bolt carrier group

Backed by thousands of qualified builds that have both an upper and a bolt carrier group.

Upper Receivers builders put under the PSA 5.56 Full-Auto Nitride MPI

Share of builds with the PSA 5.56 Full-Auto Nitride MPI and any upper

  • PWS MK116 MOD 2-M RIFLE 338ARC 16.1 LS

    Not in enough builds yet to report.

  • PSA 5.56 Full-Auto Nitride MPI

    Of bolt carrier group picks
    3.8%
    Median paid
    $75
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 Palmetto State Armory 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

Stock & Brace

Gas Block

Trigger

Pistol Grip

PWS MK116 MOD 2-M RIFLE 338ARC vs PSA 5.56 Full-Auto Nitride MPI: specs and prices

PWS MK116 MOD 2-M RIFLEPSA 5.56 Full-Auto Nitride
Best price$1999.95 at BattleHawk Armory$89.99 at Palmetto State Armory
Stores0 of 1 in stock1 of 1 in stock
AssemblyCompleten/a
PlatformAR-15n/a
Gas System LengthRiflen/a
Caliber6.8 SPC IIn/a
Length16.1n/a
Cartridgen/a5.56 NATO
Stylen/aFull-Auto
Finishn/aNitride

Both for $2089.94 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.

PWS MK116 MOD 2-M RIFLE 338ARC 16.1 LS FRC COMP

PSA 5.56 Full-Auto Nitride MPI

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.
  • PSA 5.56 Full-Auto Nitride MPI: lowest $69.99 on Jul 31, highest $89.99 on Aug 11 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.

Upper Receivers frequently paired with the PSA 5.56 Full-Auto Nitride MPI

Most picked next to it in real builds. Only parts our rules say fit the PSA 5.56 Full-Auto Nitride MPI are listed.