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These mounts are built to adapt K and RMSc footprint red dots to Picatinny rail systems. Compatible optics include the Holosun 407K, 507K, EPS, EPS Carry, and SCS Carry lines. Any RMSc optic will fit as well.
K Series Low Picatinny Mount for Holosun 407K/507K/EPS/EPS Carry - RMSc & K Series Footprint
K Series High Picatinny Mount for Holosun 407K/507K/EPS/EPS Carry - RMSc & K Series Footprint
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Did research and the Freedom Gorilla videos on YouTube were very helpful. I chose to buy on line vs a local dealer because of it.
They shipped within a week and everything was as described.
The scs 320 fit perfectly on my Sig p226 elite.
They helped answer my questions about fit.
Highly recommend Holosun optic and Freedom Gorilla!
Love these optics. Thank you for your help on getting all the correct parts.
After seeing how well this would fit on my CZ on the FG YT! channel I gave it a shot. I also picked up the recommended shortened screws for my pistol. Both are perfect and I've had none of the reliability problems I've seen in other reviews. I really value FG packaging fit information for each optic and pistol: optic, plate, screws are all sorted for you with links removing the need for homework and costly mistakes.
The Holosun 507 Competition is awesome! It’s unquestionably the largest optic I’ve ever had on a pistol. Not too big by any means., just large enough to enhance target acquisition speed. It’s big enough that I think it would cover a huge array of full size pistols as well as sub guns and smaller semi automatic weapons. The full spectrum of target reticles is a nice touch.
My ordering experience with Freedom Gorilla was highly satisfactory and look forward to purchasing more items from them . The Viridian Rfx35 did not disappoint. It’s a rigid and well built optic with glass and 3 MOA dot clarity that exceeded my expectations and I have no doubts it’ll stand the test of time .Thanks guys keep up the good work!
I found this mounting upgrade for the Echelon 4C and Holosun 407K on YouTube and it worked perfectly and looks great. Comes with everything you need.
Quick and very responsive def appreciate them
The 507k is the best green dot i own. The clarity is amazing. Love the large circle on the outside, it helps me pick up the green dot much faster. Holosun is the best.
I chose Freedom Gorilla because of all the work that they put into creating the helpful guides and videos which helped me choose the right optic for my need. They also happened to offer the best prices
Took about 10 rounds to Zero.
