Gunstocks, sights, blocks, and rollers, for each

7. Revolver-breeches, for each cartri dge they will carry, for each

8. Extractors, nippers, heel-plates, pins, Rcrews, tangs, bolts, thumbpieces, trigger-guards, hammers, pistons, platen, and ail other parts of a fire-arm not herein otherwise provided for, and ail tools used for cleaning or putting together or loading the same, for each

9. Machines for making or loading or closinf? cartridges, for each