Underworld Arms
Recoil Spring Kit for 4.25" 9mm MAC/Tisas/Prodigy/Staccato P
Recoil Spring Kit for 4.25" 9mm MAC/Tisas/Prodigy/Staccato P
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This recoil spring kit includes five springs in 1lbs increments from 7lbs-11lbs for tuning your guns performance to the specific ammunition and parts you are using. They are manufactured from 17-7 stainless steel and are designed to fit 1911 and 2011 4.25"-4.4"
These springs are manufactured by AQS the factory that makes springs for Noveske, Apex, Sig, CMMG, POF-USA. We lucked out and our shop just happened to be ten minutes from their factory.
The springs are spray painted in a color code to identify their weight, we put green and red at the opposite end of the weights so color blind individuals can tell them apart by testing tension in their hand.
7lbs - Green
8lbs - Blue
9lbs - White
10lbs - Yellow
11lbs - Red
They just work not much else to say
Awesome products
Great product that priced fairly for what you get.
Came with everything thing I needed to tune my Kimber 2k11 comp 4.25 before I ported it and had to retune after the porting worked and I still had what I needed after the porting
This spring kit is exactly what I was needing to help dial in my first DS1911/2011. My pistol feels so much better by just this one change. I can more easily/smoothly manipulate my slide to clear any malfunctions and to press check it. The biggest change is the gun doesn't feel as snappy while shooting. This is my 1st and only upgrade so far as I'm learning but I'm very pleased with the results by just this spring change alone.
