Check the listing for details. AIM7 APEX Muzzle Brake 6" Barrel Extension w/ Adapter for AEG GBB Smooth Surface. Condition: New. Listed at 54.95 USD. AIM7 APEX Muzzle Brake 6" Barrel Extension w/ Adapter for AEG GBB Smooth Surface Description: Enhance your airsoft's performance with the AIM7 APEX 6" Barrel Extension. Precision-crafted from high-quality 6061-T6 aluminum, this solid and sleek accessory delivers improved accuracy and durability. With easy installation and a black hard coat anodized finish, it's the perfect upgrade for your AEG GBB. - CNC Machined 6061-T6 High-Quality Aluminum Billet - Solid Machined Construction - Coating: Black Hard Coat Anodized Specifications: Thread Pitch: Varies Total Length: 6.15" Tube: Outer Diameter: 1.28" Inside Diameter: 1.06" ID/OD Thread: 1-1/8X28 TPI Weight: 4.7oz Features & Tips: - Highly recommend installing with Loctite Package includes: 1 x Cap 1 x Tube (Body, Smooth Surface) 1 x Barrel Adapter Notes: Disclaimer: "This item listing complies with eBay's Airsoft policy and I only ship airsoft guns to applicable law https://www.ebay.com/help/policies/prohibited-restricted-items/airsoft-air-rifle-bb-guns-policy?id=5045" This item is designed for Airsoft Gas blow back and AEG’s, it does require a Thread convertor from 14mm to 5/8 X 24 in some models. ALSO BEFORE INSTALLATION THE TIP MUST BE PAINTED ORANGE. Removing or painting over the orange tip will void your warranty." It is illegal to remove the orange tip from your airsoft gun in the United States. Before attaching it to any other things than toys please check your local laws. THIS IS NOT A SILENCER IT'S JUST A HOLLOW TUBE FOR AIRSOFT TOYS. Although it might fit on some other items, installing such an item is not recommended. Please check your local laws before ordering. The information provide here is seller opinion and based on the little information available to the seller. This is not fact or true every state and locals. Most states have different guideline and rules. Your state might have different regulations regarding this matter. 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