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Krieger - 16" Geissele Custom 5.56

The Krieger is one of our nicest all around builds. Geissele 16" CHF CL barrels are the heart of the build, bringing truly top tier durability, accuracy, and shootability in a do-it-all length. CMT 7-sided Mlock rails provide a rock solid attachment for any and all accessories you could ever want. In the back end of the build we have AO TMS BCGs and the Breek ambi charging handles.


The Basics


16" Geissele 5.56 CHF CL Barrel, CMT 15" Mlock Handguard, AO TMS BCG,  Forged Upper, and Breek Warhammer Charging Handle


The Specifics



Manufacturer - Geissele

Length/Chamber - 16.25" 5.56

Twist - 1:7 Twist

Material - 4140 HT Cold Hammer forged Chrome Lined

Profile - Custom

Gas System - Mid-Length

Finish - Phosphate/Chrome

Thread Pitch - 1/2x28

Gas Port - .077

Weight - 27oz


1st Rebarrel - FREE


Barrel nut is sequentially torqued down to 50 FT-lbs. Starting at 25, then 35, and then finally 50 FT-lbs to ensure proper mating of the threads. 


Barrel is also bedded to the upper receiver with an expanding/hardening compound to ensure perfect fit and reliable accuracy. 


If you legit burn out a barrel, like 10,000 -25,000 rounds, and the barrel becomes inaccurate I will rebarrel it for you for free. Good luck.



Bolt Carrier Group:

AO Precision True Mil Spec BCG

Bolt Material - C158

Carrier Material - 8620 Alloy

Gas Key Material - 4130 Alloy

Profile - Full Auto

Finish - Chrome

Gas Key Screws - Grade 8 (torqued and staked to Mil-Spec)

Forward Assist Cuts

Mil-Spec Firing Pin (Hard Chrome Coated)


*Individually MPI/HPT tested



Manufacturer - Cross Machine & Tool

Length - 15"

Material - 6061 T6 Aluminum

Finish - Hard Coat Black Anodization

Mounting Platform - 7-Sided Mlock

Barrel Nut - 7075  (does not require timing)

Wedge Lock Torquing System Ensures a Rock Solid Rail


Barrel nut torqued to 50 FT-lbs

Handguard screws secured with blue Loctite


We apply a Permatex Anti-Seize solution to the receiver extension before installing the barrel nut to ensure they do not lock up over many years of hard use. 



Upper Receiver:

Manufacturer - Anderson/Aero 

Material - 7075 T6 Forged Aluminum

Finish - Type 3 Hardcoat Anodized Black

Standard Forward Assist

Standard Dust Cover

M4 Feed Ramps



Charging Handle:

Manufacturer: Breek Arms Micro Mod 2 in FDE

Material: 7075 T6 Aluminum

Finish - Type 3 Hardcoat Anodized

Extras - Machined in cuts to deflect gas when shooting suppressed. 

Weight - Under 1.0oz


Gas Block:

Material - 4140 HT Steel

Style - Low Profile

Size - .750"

Attachment Method - 2x Set Screws

Not Adjustable

Dimpled to barrel


Set screws are torqued to 30 IN-lbs and have Rockset applied for ultimate security.


*Please contact me before attempting removal of the Gas Block. These are not meant to be tampered with. 



Gas Tube:

Length - Mid

Material - Stainless Steel


Flash Hider:

A2 Flash Hider


Krieger - 16" Geissele Custom 5.56

SKU: Krieger
Lead Time is 2-3 Weeks
  • Our stated policy is to not accept returns, but if you accidently ordered the wrong item or there was a mistake or if you have any issue at all send us an email (listed in the "contact us" section) and we will work it out.

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