We are Quentin Defense / Kinetic Suppressor, a firearms and suppressor manufacturer with a gun store in Gilbert, Arizona. Originally established in 2008 Quentin Defense became a reliable resource for variance manufacturing of billet AR-10 & AR-15 lower receivers throughout the gun community. With the introduction of the ARQ line of receiver sets around 2018 Quentin Defense was taking their product line to the next level by offering premium quality precision machined complete billet ARQ receiver sets in AR-15, AR-10, and AR-9. In 2020 things changed for the QD family and the original owners needed to sell the business for personal reasons. Kinetic Suppressor, another Gilbert, Arizona based manufacturer in the firearms industry, acquired Quentin Defense and promptly moved all operations under one roof. The acquisition of the QD brand and the joining of the two organizations was not met without some difficulty. However, the two companies under the new ownership continued to thrive through the transitional period and now both companies are continuously manufacturing premium quality firearms, firearms parts, and suppressors in Gilbert, Arizona. Quentin Defense / Kinetic Suppressor are now owned and operated by another local family who brings over 20 years of manufacturing and sales experience in the ATV/ Off Road communities. Both QD & KS are in constant development of new and innovative products all the while refining and improving our manufacturing processes in an effort to deliver the best quality products to our customers.