FM Products at Brownell's

[Cosmic_Charlie]

Got a yen for a 9mm AR style pistol carbine. FM Products has a nifty new hybrid type lower that takes glock mags and has last round bolt hold open. Even stores an extra mag in the grip. They are back ordered now so I will have time get all the parts.
https://www.brownells.com/rifle-parts/receiver-parts/receivers/lower-receivers/ar-15-fm-9-rtc-lower-receiver-9mm-prod110827.aspx?avs%7cManufacturer_1=FM%2bPRODUCTS %2bINC

[Remiel]

Any options for 10mm? I wouldn't mind one to go with my G20.

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[Cosmic_Charlie]

A straight blowback 10mm in an AR might be a bit much.

[Remiel]

A straight blowback 10mm in an AR might be a bit much.How so?

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[Boolit_Head]

There is something coming down the pipe for 10mm lovers.

https://mdws.forumchitchat.com/post/new-project-10mm-armag-9746954

[Cosmic_Charlie]

Reciprocating mass. Going to need a very heavy bolt carrier and buffer. A piston driven system would be much better.

[Remiel]

Reciprocating mass. Going to need a very heavy bolt carrier and buffer. A piston driven system would be much better.How heavy would i need?

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