Home / NFA - Silencer / Yankee Hill Machine Company TURBO K INTEGRAL 5.56 UPPER View cart “Gemtech TREK II 5.56MM 1/2-28 SILENCER” has been added to your cart. Sale! Yankee Hill Machine Company TURBO K INTEGRAL 5.56 UPPER$1,44995 Original price was: $1,44995.$1,21081Current price is: $1,21081. In stock Yankee Hill Machine Company TURBO K INTEGRAL 5.56 UPPER quantity Add to cart SKU: YHM-8025 Category: NFA - Silencer Product ID: 123641 Description Description Integrated Turbo SilencerPinned and Welded to 10″ BBL Related products Sale! SureFire SOCOM762-TI 7.62 FDE SLNCER $1,49900 Original price was: $1,49900.$1,28981Current price is: $1,28981. Sale! CGS Group CGS HYPERION K 7.62 SILENCER $1,12900 Original price was: $1,12900.$1,09543Current price is: $1,09543. CGS Group CGS HELIOS TI QD 5.56 SILENCER $1,65000 Sale! Gemtech LUNAR-45 45ACP BLACK 578-28 $79900 Original price was: $79900.$73717Current price is: $73717.