1. They adopted simple peep sights , which were later replaced by a knife blade sight. 2. The guns featured a front peep sight and a rear adjustable leaf iron sight. 3. There is an antiaircraft rear peep sight hinged on the open rear sight base. 4. It had adjustable peep sight apertures, a hooded front sight, and a small, removable magazine. 5. The cupola tender observes the furnace through the sight glass or peep sight in the tuyeres. 6. The International Model was similar, but lacked the rear peep sight and had a Mannlicher-type stock. 7. In total the mine weighed about, and could be fitted with an optional peep sight for aiming. 8. It is fitted with a peep sight set which is much more accurate than regular iron sights. 9. It still had the military stock, a peep sight and a Parkerized barrel that gave it a dull grey-green finish. 10. Some of these " peep sights " provide precise, repeatable adjustments for long range shooting with no need for tools.
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