Armaspec HUB 1-3/8 x 24 / .9 Internal Thread 17-4 HT QPQ Black. 9 Internal Thread 17-4 HT QPQ was developed in order to function as the best product for any person trying to find an outstanding choice.. Formulated working with several of the most heavy duty and long lasting resources in existence these Muzzle Brakes & Compensators by Armaspec will present you with a product that will give years of stability. Armaspec has been developing top quality products for a number of years and the Armaspec HUB 1-3/8 x 24 / .9 Internal Thread 17-4 HT QPQ is their very own means of demonstrating exactly how much they care. Here at OpticsPlanet we make it our obligation to get the most suitable solution for all your specifications and featuring the Armaspec HUB 1-3/8 x 24 / .9 Internal Thread 17-4 HT QPQ is a thing that we're happy to offer. Specifications for Armaspec HUB 1-3/8 x 24 / .9 Internal Thread 17-4 HT QPQ: Manufacturer: Armaspec Color: Black Finish: QPQ Threads per Inch: 3/8x24 Package Contents: Armaspec HUB 1-3/8 x 24 / .9 Internal Thread 17-4 HT QPQ Armaspec ARM891-BLK: HUB 1-3/8 x 24 / .9 Internal Thread 17-4 HT QPQ Black