Check the listing for details. Aim7 STUMPY-2 9mm & 22LR & .40Cal Linear Comp 3 PCS muzzle brake. Color: Black, Condition: New. Listed at 38.95 USD. Aim7 STUMPY-2 9mm & 22LR & .40Cal Linear Comp 3 PCS Linear Comp Features:Thread Types: 1/2×28 TPI, , 1/2×36 Tpi, 9/16×24 TPI, 1/2x28 tpi 22LROverall Length: 1.71″ InchesOD: 1.28 InchesCaliber: Varies based on barrel threadWeight: 1.6 ozHeat Treatment: 6061 Aluminum Surface Finish: Black Anodized .40cal & smaller. About AIM7Tac AIM7Tac's mission is to provide quality products. We believe that creating the best buying experience is the key ingredient in creating happy customers. We strive for 100% positive transactions. If you have any questions or concerns please contact us! Shipping Information - Your order Ships Same Day or 1 Business Day from California USA. - Please make sure your address on eBay is correct. - We will only follow your address listed on the eBay orders for the shipment. Return - We can exchange the item within 30 days after you received it if it is defective. - The item can be returned in its original condition for a full refund or replacement within 30 days of receipt. You may receive a partial or no refund on used, damaged or materially different returns. Contact Us - If you want to know more or has any questions about our products, please kindly contact us through eBay message. - We greatly appreciate your POSITIVE feedback. - Please contact us through eBay message if you have any questions about your order. We will try our best to resolve the issues. - Negative or Neutral feedback does not resolve any underlying issues that you may be experiencing as a buyer. Our Office Time: (GMT+8): 10:00 AM -- 6:00 PM (From Monday to Friday) Contact AIM7Tac