The top rail was also redesigned so that when installed it creates one continuous Picatinny rail between the upper receiver and the handguard.
What does UR stand for?
UR stands for Upper Receiver
This definition appears frequently and is found in the following Acronym Finder categories:
- Science, medicine, engineering, etc.
See other definitions of UR
We have 13 other meanings of UR in our Acronym Attic
- Universal Records (record label)
- Universal Rectifier
- Universal Remote
- Universidad Regiomontana (Monterrey, Mexico)
- University of Regina
- University of Richmond (Virginia)
- University of Rochester
- University Relations
- Unsatisfactory Report
- Up (Stage) Right
Samples in periodicals archive:
A monolithic upper receiver is one where the receiver, optics rail and forward stock are a single piece of material, whether metal or polymer.
50 Beowulf was likewise developed by Alexander Arms for use in a slightly modified upper receiver and standard-dimension magazine well.
Since the scope remains mounted on the upper receiver, the scope zero is maintained.
Colt has some ideas on the next generation of C7, in that the rifle could see a fully integrated upper receiver and a free floated barrel, which would make the rifle inherently more accurate.
The weapon had Arabic writing, later translated as "war machine," engraved on the left side of the upper receiver.
LYMAN The Power Pro's heated tank and industrial transducers clean most barreled actions, upper receivers and multiple handguns, with barrel lengths up to 34".