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20mm
The 20 mm caliber is a common firearm bore diameter, typically used to distinguish smaller-caliber weapons, commonly called "guns", from larger-caliber "cannons" (e.g. machine gun vs. autocannon). All 20 mm cartridges have an outside projectile (bullet) diameter and barrel bore diameter of 0.787 inches (20.0 mm). These projectiles are typically 75 to 127 mm (3–5 in) long, cartridge cases are typically 75 to 152 mm (3–6 in) long, and most are shells, with an explosive payload and detonating fuze.
Weapons using this caliber range from anti-materiel rifles and anti-tank rifles to aircraft autocannons and anti-aircraft guns.
This is a Leupold VX-3 1.5-5 20mm Scope in Excellent condition. It is a Standard Crosshair Reticle. The tube diameter is 1" and it has Weaver Scope Rings on it. The scope comes with flip up lens covers. It is Gloss Black with low profile turrets. Shipping is $20 USPS Priority or locale...
This 2011 Bul Armory SAS II full sized 26mm grip module was taken off my new SAS II VIPER. Mainspring housing with spring and plunger included. Perfect candidate for stippling, or an upgrade to the compact grip module. This accommodates the 19 round Bul magazines.
$140 picked up from Clackamas...