Glock Gen 6 ORS uses a polymer insert in leu of an adapter plate. OPF-G6, DPP does not. The elasticity meant to provide upward tension from its elasticity also applies to the lugs on the insert.
Our plates have never used or relied on upward tension to keep the plate-to-slide screws from loosening, we successfully use other means for the same end. With MOS, plate-to-slide screws are separate from sight-to-plate. With Gen 6 ORS, it's an insert with lugs, screws go through the RMR and DPP and directly thread into the slide. We don't want lugs to have elasticity or give, when that happens, the load is transferred to the screws, our plate is specifically designed to remove the load transfer to plate-to slide screws.
OPF-G6, DPP has four lugs to support DPP's four lug holes.
All OPF-G6 plates are milled in 17-4 stainless steel. 17-4 stainless is an option we've made available on many of our Gen 5 MOS plates for MIL and LE customers, it's standard on FCD Gen 6 ORS compatible plates. We don't believe aluminum is a suitable material for anything that can experience up to 1800G in recoil, especially for sights like P2 and MSP that use a cross bolt. A 1.2oz RMR weighs 112.5lb in 1500G of recoil. Will 7075 hold up, and to a lesser degree, will the softer 6061 hold up? We're not taking chances with aluminum. 17-4 SS is more expensive to source and time consuming to machine, our way has always been about the best we can muster, not the cheapest.
Gen 6 ORS pocket has a spindle shaped cavity/depression designed to prevent the plates from rotating, shifting longitudinally and laterally. There is also a small, 45 degrees rear locking tab to keep the rear of the plate down. All OPF-G6 plates have a bottom contoured to fit and fill out the spindle cavity, they also have a small relief in the rear to make use and engage the ORS pocket's rear locking tab. When installing OPF-G6 plates, the rear of the plate must be inserted into the rear ORS pocket at an angle, the front of the plate then can be rotated down into the pocket, the same way factory polymer inserts are installed. Glock Gen 6 ORS provides means to secure the plate in the ORS slide, OPF-G6 plates take full advantage of the tools Glock provides.
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