LR308 .308 Thread Protector， 5/8x24 Pitch， .936<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Steel Thread Protector</li><li>Phosphate Finish</li><li>.308， 5/8x24 Thread Pitch</li><li>.936 Barrel Diameter</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41O-ftnu%2BSL.jpg" noproxy>