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K3BM4-FT: Flat-top M4 AR-15 Carbine

Quick Overview

16" M4 Flat-top carbine

Availability: Available (built to order)


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The K3BM4-FT is the flat-top version of our M4 Series. 

Standard with the following features:

  • Forged 7075 T6 aluminum lower receiver
  • Forged 7076 T6 aluminum picatinny flat-top upper
  • 16" 416 stainless steel M4 contour barrel w/Black oxide finish
  • 1x9" Twist
  • Threaded muzzle (1/2x28 tpi)
  • A2 Flash suppressor
  • Standard Military style A-frame front sight base assembly w/bayonet lug
  • M4 Style handguards
  • Aluminum Delta Ring Assembly
  • 6-position M4 collapsible stock 
  • GI style pistol grip

Sold with single rifle hard case, 30 round magazine, sling, and owner's manual. 

100% Made in the USA

Limited Lifetime Warranty

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Olympic Arms, Inc. is not affiliated with the IOC/USOC or any other Olympic sports organization.