WILLIAMS WGRS-336 RECEIVER PEEP SIGHT - Fits Marlin 336 Lever Action - Receiver Peep Works Great With Existing Front Sight - Aluminum Construction - Gunsmith Installation Recommended About Williams Williams Gun Sight Company was started in 1926 by Harvey Williams as a sight manufacture. The company grew its sight manufacturing business over the years then developed a retail store and shooting ranges in Davison, Michigan. In recent years, Williams is the oldest sight company that provides sights to many different gun manufactures.