Gemtech 8889494 Thread Protector .5-28

Gemtech Thread Protector Black - THDPROT 1/2-28. .. protect your threads. We stock most all standard sizes: M13.5x1mm Left Hand: For Sig P226 HK USP9SD and Smith & Wesson M&P9 SpecOp. 0.578-28: For 1911 Glock 21 (aftermarket) Sig P220 Combat and FN FNP. M16x1mm Left Hand:: For the HK USP Tactical USP-CT HK45 HK45c and Factory Glock 21. 5/8-24 (0.61" long): For use with any rifle that is threaded 5/8-24x.61" These protectors will tighten down easily onto most any appropriately-threaded pistol or rifle barrel keeping fine threads from being damaged from bumping around gun cases or when you're not using your suppressor. Specifications for Gemtech Thread Protector: Manufacturer: Gemtech Color: Black Package Contents: Gemtech Thread Protector Gemtech Thread Protector - THDPROT 0.5-28