Variations accepted as original are: one or two piece braised butt-plate, one piece poured pewter, or two piece braised nosecap, flat sided snail of J & S period or S. Hawken full scoop on patent breech, straight breech or slanted, 1 1/8" barrel straight or tapered or 1" straight octagonal barrel, and occasionally fancy wood and patchbox. Search for Sks Rifle Barrels Replacement And Thompson Center Hawken Rifle Barrel Sks Rifle Barrels Replacement And Thompson Center Hawken Rifle Barrel Ads Immed