Atlas BT20-B Accuracy International Spigot Bottom Rail
The BT20B Atlas Accuracy International Spigot Bottom Rail is the same rail found in the BT20, but consists of the bottom 1913 rail ONLY.
The evolution of long range shooting and shooter's demand drove subtle changes to the BT19. The latest modification stops the 3 to 9 rotation.
NOTE:ÊTheÊBT20ÊAtlas Accuracy International Spigot Rail Set is a three piece, 1913 rail set that can be attached to the BT19 AAIS. This accommodates for a multitude of mounting options including any of our rail mounted Atlas Bipods.
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