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Superior Shooting Systems Inc.
800 N. Second St.
Canadian TX 79014

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Chrome Silicon AR15 "NM" TRIGGER SET

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AR15 MAIN PAGE

CS AR15 "NM" Trigger Return Spring Set

One of the biggest complaints we've heard from Service Rifle shooters is the difficulty of attaining the trigger characteristics the better shooters desire and still have a workable, reliable, and consistent trigger.

Superior Shooting Systems Inc. just went a long way towards attaining that goal. Our chrome silicon CS NM Trigger Return Springs Set installs on your two-stage AR15 trigger without any modifications to the trigger (engagement adjustment will probably be necessary) and allows attaining a very light second-stage break weight while maintaining the tension necessary for safety and legality in competition.


Dual trigger return springs shown, modified with bend.
CLICK HERE FOR INSTALLATION INSTRUCTIONS


The NRA Service Rifle rules, as well as CMP guidelines, restrict minimum trigger pull weight to 4-1/2 pounds.

When you shoot a two-stage trigger, it's the combination of the first and second stages that determines its overall weight. For instance, if there are 2 pounds in the first stage and 2 in the second, that is a 4 pound trigger. Consequently, maximizing first-stage weight lets the second be lighter, and a lighter second stage is what the shooter feels as the break weight. A lighter trigger makes trigger control much more efficient, and results in much improved shot timing.

Due to adjustment limitations set forth by its design, the "trick" to getting a heavier first-stage weight has been bending the trigger return spring legs downward to increase their tension. This works -- for a time. One problem with making this modification is that the music wire springs in these triggers will change radically with use, and over time. This means that your 4-1/2 pound trigger will NOT always be a 4-1/2 pound trigger. (Even if the rifle isn't fired, these springs won't last a year without changing weight.) Changed trigger characteristics lead to inconsistent trigger behavior, and, at the worst, disqualification from competition.

The Superior Shooting Systems Inc. CS AR15 Trigger Return Spring allows the leg bending modification (and responds better to it than conventional music wire springs due to the superior structure and life of chrome silicon) but many people are not able to attain desired adequate spring tension through this modification.

The solution is to install TWO SSS Inc. CS AR15 Trigger Return Springs following the instructions enclosed. Since the SSS Inc. CS springs are already lighter in function than the standard spring, doubling our CS springs -- with no other modifications made to them -- normally results in a suitable trigger. A simple modification (bending the spring legs, which, again, will not accelerate spring degradation in CS as it can with music wire) can increase first-stage weight to 4 pounds. That leaves the shooter holding only a half pound of trigger for the second stage (assuming the trigger is otherwise correctly adjusted via manufacturer's instructions).

The SSS Inc. solution is one you can count on. Chrome silicon springs are far more consistent and stable than standard springs. Our exclusive use of certified materials and comprehensive post-winding processes (shot peening, heat treating, etc.) ensure perfect spring performance consistency for the life of the rifle. When the trigger is functioning at its optimum possible level, and the shooter knows it will not change, he can focus on shooting better scores -- and will!

The CS Hammer Spring is specially engineered to provide faster rebound (quicker lock-time) than the conventional spring but at a lower compression weight (achieved by the properties of chrome silicon). This allows improved firing mechanism performance and a lighter second stage trigger pull.

Click HERE to go to INSTALLATION INSTRUCTIONS page

Click HERE to download INSTALLATION INSTRUCTIONS

Also click HERE to see how to modify a standard spring for better performance in your trigger.

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