"You will be Happy, or we will make it Right - Semper Fi"
                      Paul and Randall Kempf, owners, On Mark Arms, LLC

I have 7 6 5 4 3 (a few left) Tactical Fire Control Match Grade Triggers due here sometime in February.

Go Full Auto, Get a Match Grade 3 position AR Trigger without the bump stock.




SAFE    _    AUTO



Orders MUST be placed online. We try to catch the phone but sometimes we are deep in a lathe or a mill. The best way to reach us: Sales@CimMfg.us. 


Your purchase amount will be pre-authorized and held in your bank until your order is ready to ship.


coming this year - NEXGEN         
Next Generation 308 platforms by AR Performance 
proprietary:   upper   bolt   carrier   
barrel   barrel extension

AR10:   dust cover    charging handle    firing pin
AR15:   cam pin    cotter & bolt key    handguard    gas tube    gas block

For years many have said they wish there were an AR12:    

A 308 rifle near the weight of the AR-15.
A 7lb 16" 308 (bare) rifle is on the horizon.

NexGen will shoot anything between 5.56 and 308
or 6.5 Carcano (.450" dia) based cartridges.
Standard 308 Pmags can be used in DPMS style 308 lowers.  

NexGen information HERE




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BullFrog Electronic Cleaner BullFrog Electronic Cleaner BullFrog Electronic Cleaner
BullFrog Cooling SystemBullFrog Electronic Cleaner - ships UPS ground only: ORM-DBullFrog Rusthunter Cleaner - ships UPS ground only: ORM-D

Fight the high cost of rust and corrosion with the same Vapor Corrosion Inhibitors developed for major industries, the military and NATO. Bullfrog metal-seeking VpCIs seal and protect metals with a self-repairing "molecular umbrella." The VpCIs...

Remove the corrosion, dirt, & grit that’s silently attacking every electronic device, every electrical system you depend on! Block new corrosion for up to a year with the same technology developed for major industries, the military...

Mono-molecular sized rust inhibitors can penetrate areas even fine oils can't reach. Remove the dirt and grime on your firearms and protect them for up to a year! Fight the high cost of rust with the same vapor phase corrosion inhibitors...

Carroll's Ultimate Precision Shooting Rest
Carroll's Ultimate Precision Shooting Rest
Carroll's Ultimate Shooting Rest is a break though in shooting rest design! The features are amazing...Perfect for v armint hunting, law enforcement, military, competition, gun cleaning, teaching women and children, testing loads, sighting in...
1 - 4 of 4 items

On Mark Arms is committed to providing the highest performance in the AR platform. Better ballistics, improved accuracy, increased velocity, longer life, and easier cleaning are all possible with a redesigned chamber and high performance hybrid 5R rifling in Melonite treated 4150 CMV barrels designed and manufactured by AR Performance.

On Mark Arms LLC is a Veteran owned, verified and secure retailer of AR pattern products. We want you to be Ready, Reliable, and Accurate.  Our primary interest is to see that you are satisfied with our products.

  Cimarron is the manufacturing side of On Mark Arms.