+ 1-415-730-4454 sai@monsterroute.com


I purchased a GPS stock about 18 months ago. I have to say it has vastly improved the consistency with which I mount my gun. The design of the stock appears so radical, but when you use it, you wonder why it isn’t the standard for all shotgun stocks. Now when I shoot a shotgun with a “standard“ stock, it feels so unrefined and clunky. GPS has completely redefined the way a competition shotgun should feel.


Trysten Routledge


14 Aug, 2019

From start to finish my experience with GPS stocks has been amazing! I called GPS stocks as I was in a bit of pinch I had a major tournament just two weeks out from my phone call. I dealt with Sai the owner of GPS directly who returned my phone call immediately then took the time to speak with me about achieving the proper GPS configuration that I needed and let me say that Sai knows a thing or two about gun fit! After working closely with him me over the phone he was able understand and figure out exactly what I needed . My GPS stock arrived at my door in a surprisingly short time and I must say that the quality of workmanship that went into this stock was superb and it’s adjustiblity was pretty much limitless. From my experience I have to say that Sai’s customer service,knowledge and product far exceeded my expectations! And to boot I went on to win the Canadian provincials! Thanks Sai!


Jay Harb


07 Aug, 2019

I just picked up my stock from Sai and want to thank him for the time he spent with me adjusting it to me and my DT11. I went out the next day and shot trap, the first round I shot was 25x25. This stock is amazing and it gives you so much more control of the gun. Again THANKS Sai for the time and effort that you have put into this stock it is just Amazing what it does and how it has changed my shooting for the best.  

Bill Reinecke


31 Jan, 2019

My son loves the stock, especially the thumb hole grip and the adjustability. I was very impressed with the customer service. Would highly recommend the GPS stock.

Dennis Duncan


25 Oct, 2018

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