Named after the Picatinny Arsenal in New Jersey, where it was developed, the rail comprises a series of ridges with a T-shaped cross-section interspersed with flat “spacing slots”. Scopes et al. are mounted either by sliding them on from one end or the other; by means of a “rail-grabber” which is clamped to the rail with bolts, thumbscrews or levers; or onto the slots between the raised sections. Picatinny rail sections are the current standard attachment methods for weapon accessories among US and NATO forces.
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