Otter Creek Arms Llc OCL-302 SPR Collar Raw Heat Treat
https://www.tandktactical.com/shop/664533659007-otter-creek-arms-llc-ocl-302-spr-collar-raw-heat-treat-42459
https://www.tandktactical.com/web/image/product.template/42459/image_1920?unique=cf9499f
Short SPR locating collar for ops inc 12 model, AEM5 and OCM5. Made from H900 heat treated 17-4 steel.
