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SOLD MEGA MTS-400 Monolithic Upper Receiver $300

4

468shot

Sergeant of the Hide
Full Member
Minuteman
    • Jan 29, 2009
    448
    58
    SE, New Mexico
    I have an older Mega upper for sale. It has been cerkaoted in Magpul FDE, prior it had about 500 rounds through it. It was never reassembled after being coated. It would pass for new aside from some aluminum anti-seize on the barrel nut and in the receiver thread area. It will come in the original box with the wrench and instructions.

    Price is $500 shipped and insured in conus or best reasonable offer. New price, $300 shipped.
     

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    Last edited:
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    NHPiper said:
    Know the handguard length? I can't find it online.
    Click to expand...
    J-Fonz is correct. The rail is just short of 12 1/4" from the extension seat in the receiver. A rifle length gas system is 12.282" measured from the same location, making the rail stop just short of a rifle length gas block.
     

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    Dumb question but are the barrels secured with a set screw or how do you install a barrel?
     
    Iamero said:
    Dumb question but are the barrels secured with a set screw or how do you install a barrel?
    Click to expand...
    You use the mega provided barrel nut, it's in the second picture. The wrench is a pipe, the end is notched to match the barrel nut and it has tab welded on the opposing end of the pipe with a square punched out of it for a torque wrench. Drop the barrel into the receiver through the handguard, slide the barrel nut on, slide the pipe over the barrel and torque down the nut. I can post the Mega instructions if you need them.
     
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