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Thread: WK180-C and WS-MCR Cross-Compatibility Breakdown

  1. #1
    Business Member True North Arms Corp's Avatar
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    WK180-C and WS-MCR Cross-Compatibility Breakdown

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    Hey guys,

    Here’s an in-depth breakdown of the WK180-C & WS-MCR’s Cross-Compatibility.



    We disassembled and reassembled the WK180-C and the WS-MCR and cross-examined the guts of these guns. Now we have a deeper look into the internals of the WK180B hybrids, and we’re sharing our discoveries with you.

    You’ll be pleasantly surprised that there are many AR-15 compatible parts and interchangeability between both rifle systems.



    WK180-C & WS-MCR | CROSS-COMPATIBILITY PARTS

    AR-15 Compatibility between the WK180-C & WS-MCR Rifles

    These parts are the same between both rifles and are also cross-compatible with the AR-15 platform: Trigger, Trigger Spring, Hammer, Hammer Spring, Disconnector, Disconnector Spring, Pistol Grip Screw, Pistol Grip Screw Washer, Mag Catch, Mag Catch Spring, Mag Catch Button, Castle Nut, Buffer Tube, Stock, Ejector, Ejector Spring, Ejector Pin, Extractor, Extractor Spring Insert, Extractor Spring, Extractor Pin, Firing Pin Retainer, Crush Washer, Muzzle Brake, Handguard* (AR-15 must be large clearance), Barrel* (AR-15 Carbine Length Gas System), Pistol Grip* (No Beaver Tails)

    WK180-C & WS-MCR Cross-Compatibility
    This group of parts are proprietary to both the WK180-C & WS-MCR platforms but can be interchanged between each other: Trigger Pin, Hammer Pin, Safety, Bolt, Bolt Catch, Bolt Catch Spring, External Bolt Catch Option, Bolt Catch “E” Clip, Buffer Tube Adapter Screw, Firing Pin, Firing Spring Pin, Return Spring, Guide Rod, Gas Piston, Gas Piston Spring



    Note there are a series of MCR parts that are not fully interchangeable with the WK180-C rifle. These parts may require modifications or other AR-15 parts for replacements and upgrades. Some of these parts are exclusive to the MCR system, and others can still be swapped into the MCR using complete WK180-C systems or kits.

    The WK180-C Bolt Carrier, Cam Pin, and Return Spring Plate can be fitted to the MCR rifle with minor modifications.

    The MCR Pivot Pin Detent and Pivot Pin Detent Spring are compatible with the AR-15 platform. (The WK180-C uses a different system)

    This group of parts are proprietary to the MCR platform and are not interchangeable with the WK180-C rifle: Buffer Tube Adapter, Stripped Lower, Stripped Upper, Charging Handle, Gas Block Gas Screw, Gas Block Set Screw

    This set of specific parts are proprietary to the MCR rifle when swapped out individually. However, if an entire system or kit from the WK180-C is swapped into the MCR, it will fit.

    • Gas Block: The Gas Block in the WS-MCR is unique to its platform, but if you switch a complete WK180-C Gas Block system into the MCR, it will fit.
    • Bolt Catch Pin & Pivot Pin: The Bolt Catch Pin and the Pivot Pin is also a proprietary part to the MCR. That said, you can still interchange a complete WK180-C Receiver Kit into the MCR platform and it will fit. (The MCR has a slight difference in its design)



    That wraps up our breakdown of the compatibility options for the WK180-C & WS-MCR rifles.

    Now that you’re familiar with the parts you’ll need to upgrade and replace in your WK180-C, have a look at our easy to install handguards, and if you’ve given your gun good use at the range, we’ve got replacement WK180-C parts to help you out too.

    Have a great week.

    Stanley and the gang
    True North Arms Corp.
    Website truenortharms.com
    Email info@truenortharms.com
    Instagram truenortharms

  2. #2
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    Tagged

  3. #3
    CGN Regular MajorCow's Avatar
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    I need a better charging handle for the WK =/

  4. #4
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    Excellent evaluation! Thank you! It looks like you could build a WK-180C from scratch, or multiple alternate caliber uppers, based on the inventory from your site/store. It says on the breakdown that the bolt is a proprietary part; will you be producing different caliber bolts (and bolt carriers, if need be) so people could produce their own 7.62x39mm, Valkyrie, Grendel, or 6MM ARC uppers or complete rifles?

  5. #5
    GunNutz
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    so about them pencil profile barrels...?
    CCFR Member

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    Quote Originally Posted by VancouverS4 View Post
    so about them pencil profile barrels...?
    This, with integrated flash hider/muzzle brake included in the 18.6 inches

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    CGN Regular wolf300H&H's Avatar
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    Quote Originally Posted by MajorCow View Post
    I need a better charging handle for the WK =/
    Spectre ballistics bud is your friend

  8. #8
    Member jrusseller's Avatar
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    Quote Originally Posted by apexanimal View Post
    This, with integrated flash hider/muzzle brake included in the 18.6 inches
    100%. That’s what made the 180b the best NR black gun on the market. Handles like a 16” barrelled AR.

  9. #9
    CGN Ultra frequent flyer rugbydave's Avatar
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    Quote Originally Posted by apexanimal View Post
    This, with integrated flash hider/muzzle brake included in the 18.6 inches
    This ^

  10. #10
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    What about a brownells BRN180 handguard, it transitions from square receiver to round handguard nicely any plans to build something like that?
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