The original rear sight that comes with any of these airgun models will no longer fit on the steel breech. If you want a rear sight, the Crosman LPA MIM rear sight is made for this upgrade
*This breech does not fit older model 1377 air pistols with a sliding breech cover.
- 1-Year Limited Warranty
- Fits Crosman airgun models 1377,* 1740, 1760 and PC77
- Will accept the Crosman LPA MIM rear sight
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