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AR15 Olympic Arms K3B M4 Semiauto 5.56 or 223


AR15 Olympic Arms K3B-M4 16" Rifle

AR15 Olympic Arms K3B-M4 16" Rifle  


The Olympic Arms 16-inch carbine is the rifle that will offer fun for a very long time.  With Olympic Arms match grade barrel your K3B will start and stay accurate, outperforming other manufacturers barrels on the market.  Often described as a rugged, reliable, accurate, and comfortable is rifle occupies the trunks of hundreds of police patrol cars.  Standard in a 5.56 NATO chambering, this personal package is available in four different pistol calibers, as well as with a flattop upper receiver


K3B-MIL4 specifications:

All the features of the K3B, with the addition of:

Collapsible stock

Mil4 barrel

Mil4 Handguard


A rugged and reliable carbine with a tactical rifle look. Standard with a collapsible stock, flash suppressor, and mil 4 barrel, this rifle still won't break the bank.




Description / Information Code: K3B-M4

7075 T6 Aluminum Forged Receivers Made By Olympic Arms

Black Matte Anodized Receivers

Parkerized Steel Parts

Gas Operated Semi-Automatic

Upper Type

A2 w/ fully adjustable rear sight

Front Sight

Elevation adjustable post w/ bayonet lug


M4S Fiberite w/ heat shield


16", button rifled, M4 416 stainless steel


5.56 NATO


Long-life non-chromed bore

Twist Rate



A2 flash suppressor


6-point collapsible


32.25" / 6.34 lbs.


Consider the A3-TC variation featuring a flat top upper receiver and detachable carry handle.


Following two options package should consider before placing your order both of them will enhance the tactical capability of your rifle K3B-M4.


 Option 1 adds the A3 Flat top and Detachable Carry Handle ($90.00 extra) at check out.


Option 2 turn your K3B in to tactical carbine Mil4-A3-TC ($173.00 extra) which adds the A3 flattop detachable carry handle and flattop lower receiver also F8R Firsh Handguard to ensure you have enough space for all your accessories




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Quantity   1+  
Price $1,199.99
In Stock

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