SAE Standard Complete assortment of over 400 Buna o-rings from .25in to 2.25in OD. BUNA-N material is oil proof and passes ASTM oil #1 & #3 lab tests. Includes all common sizes for most markers; hoppers; etc. Comes in a sturdy organizing case. A necessity for any gunsmith to have in their toolbox!
Product ID: XP9955A-AS
