When you’re looking throughout The MSP Sight, you will find use the words Picatinny and Weaver to describe what lots of distinct parts and accessories which use the words Picatinny and Weaver to explain what they’re compatible with. Just what’s a Picatinny Rail anyhow? And how is it distinct in the Weaver? Looking at the source of the Picatinny system will be helpful. The Picatinny Rail is a term that has evolved from the firearm industry by a standard MIL-STD-1913 that was adopted on Feb 3, 1995. The title of the publication is Dimensioning of accessory mounting rail for small arms Weapons. Also, this document specified were to be submitted for approval by the which were to be provided for acceptance by the army.
The term Picatinny comes from a place of origin because of this system, the Picatinny Arsenal. MIL STD-1913 specifies the dimensions needed for consideration, such as length, width, height and permitted angles and tolerances for each measurement. The main difference between the MIL STD-1913 lies in the specification to the profile along with the recoil groove. Source: MIL STD-1913 3 February 1995. Source: MIL STD-1913 3 February 1995. What are the differences between the Picatinny, and the Weaver, systems? The profile of the two systems is virtually indistinguishable. Based grooves have to be consistent for it to be a.
The great grooves have to be consistent for it to be a groove and with a diameter of the slots. MIL-STD-1913 slots are 206, broad and possess a center-to-center width of 394. The placement of those grooves has to be consistent for it to be a real Picatinny, MIL-STD system. Weaver systems maintain a 180, width of the slot and aren’t necessarily consistent at a center-to-center measurement from one slot to the next. A Weaver system has a specific application that it’s machined for, so interchangeability isn’t necessarily a problem. A Weaver system will, in most cases, comply with the specifications noted. There are, of course, exceptions to each rule, army desires uniformity from the recoil grooves to permit.
Now, what does this imply to you? Boiled down, it means that accessories designed to get a Weaver system will, in most cases, match on a Picatinny, order. The opposite is not the case. Because of the more prominent recoil groove, Picatinny, accessories won’t match a Weaver system. There are, of course, exceptions to each rule, however, to get a fantastic rule-of-thumb, Picatinny, will not match Weaver, but Weaver will match Picatinny.