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Question about Firebird lower receiver


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What esle will I need to complete the gun?

 

Anything else besides

Buffer tube

Butt stock

Pistol grip

 

Not needed but want to ad

Tooth & Nail forearm with charging handle

 

Also is Firebird the only one that makes a reveiver?

 

 

 

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At this time Firebird Precision is the only one offering an aluminum lower receiver for the MKA 1919. In the box you will also find replacement hammer and trigger pins, a new detent screw for the safety, a GI spec roll pin for the bolt stop and a cap screw that locks the upper to the lower.

 

In addition to the parts you mentioned, you will need the screw that holds on the pistol grip, the bolt stop and spring, the magazine latch and spring, the fire control group (trigger, disconnector, safety and hammer and springs) either from your polymer lower or from an aftermarket source. The hole in the bolt stop will need to be slightly enlarged (#37 drill bit) and the upper receiver may need to be "notched" to allow the bolt hold open to work. In my case (I used all FP parts) the hammer was a little too wide for the new lower and had to be fitted.

 

Bill

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Thanks for the response. Besides the bolt for the grip do the rest of the mentioned parts come from my old lower?

 

You can use the parts from your polymer lower but changing out these parts (hammer, disconnector & trigger) will result in three part towards 922 compliance and a far better trigger pull.

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Thanks for the response. Besides the bolt for the grip do the rest of the mentioned parts come from my old lower?

 

You can use the parts from your polymer lower but changing out these parts (hammer, disconnector & trigger) will result in three part towards 922 compliance and a far better trigger pull.

 

Thanks!

After some more research these are the parts I'm going to be changing.

receiver

gas piston

trigger

hammer

diconnector

butt stock

pistol grip

forearm

drive block

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There is no provision for the retainer & spring. It's only function it is to retain the buffer in the extension tube of ARs. The tab of an endplate aligns the buffer tube, and yes you will want to use one of those.

Edited by cad_man
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