U.S. M1 Carbine
Underwood
Serial Number: 2586535

LandesGendarmerieKommando Kärnten (LGKK)

Background

Returned to the U.S. Army by the government of Austria. Provided to the Civilian Marksmanship Program (CMP), by the U.S. Army. Examined at CMP, prior to the armorers.

Barrel Group

Barrel   no barrel markings (Erma Werke of Dachau, Bavaria)
Front Sight type I N (Niedner Rifle Company of Dowagiac, MI for Inland and others, Quality Hardware included)
Barrel Band/Swivel type III JM on band, lug unmarked (unknow GI subcontractor)
Slide type III N 5 (National Postal Meter)

Stock Group

Stock type II RMC (Rock-ola)
Handguard type II JL-B (Jamestown Lounge Company of Jamestown, NY for IBM)
Buttplate    

Stock slingwell and bottom of handguard have entire serial number.

Receiver Group

Receiver   Underwood with S stamped inside Ordnance bomb (United Shoe Machine Corp. of Beverly, MA for Underwood)
Rear Sight type II PI (Packard Mfg. Corp of Indianapolis for Inland)
Operating Spring Tunnel Housing   attached
Recoil Plate type III AU (Underwood)

No evidence of any agency markings.

Bolt Group

Bolt flat IO with sideways 1 (Inland)
Ejector type II  
Extractor type III WI (Wadsworth Watch Case Company of Dayton, KY for Inland)
Extractor Plunger type II  
Firing Pin type III IN (International Silver Company of Meriden, CT for National Postal Meter)

Bolt has entire serial number engraved on top.

Trigger Group

Trigger Housing type II N 16 (National Postal Meter)
Trigger    
Sear type I  
Hammer type III W (Winchester)
Trigger Housing Pin type II  
Safety type IV HI (unknown subcontractor for Inland)
Magazine Catch type III HI (H&R Machine Company for Inland)

Trigger Housing has purplish tint from rebluing