Quick view Wishlist Gun Point Custom Shop 9MM 4 PRONG FLASH HIDER .920 DIAMETER ½ x 28 THREAD PITCH $65.00 $59.00 Custom 9mm 4 Prong Flash Hider. Custom .920 diameter. (Matching our 9mm Barrel Profile) Machine Gun Rated Steel. Custom ½ x 28 Thread Pitch. Finished in Black Nitride. 100% Life Time Guarantee Proudly Made in USA... Add to Cart Compare