The two Weaver-style locking bars (l.) and that of one brand of Picatinny ringdo not fully fit Picatinny rails. The Picatinny ring (r.) locking bar, machined integral to this particular ring, is made to completely fill the rail slot to prevent forward or backward movement under recoil.
People also ask
Can you use a weaver ring on a Picatinny rail?
Weaver rails. As a result, Picatinny accessories require the slots to be uniformly spaced, so they will usually not fit on Weaver rails. However, many scope rings that market themselves for use on Picatinny rails use a crossbolt sized for the smaller 0.18 Weaver rail, so that they can be used on both Weaver and Picatinny rails interchangeably.
What is the difference between a Picatinny and a weaver?
Relevant Characteristics Between Picatinny and Weaver Spec Picatinny Weaver Slot Width .206 inch Not Standardized Slot Spacing .394 inch .18 inch Interchangeable? No Yes Rail Height 5-10 mm Not Standardized
What is the difference between Weaver slots and Picatinny slots?
Weaver slots are also smaller than Picatinny slots at .180 (Picatinny rail slots are .206), and for both of these reasons, accessories intended for a Weaver rail will fit a Picatinny rail.
Can you use a Picatinny mount with a weaver crossbar?
On the other hand, you wouldn’t be able to use a Picatinny mount with a cross-bar in a Weaver rail because it is too wide. I looked through the various rings available on MidwayUSA and was surprised that some rings specified for Picatinny are still using Weaver sized crossbars.