Hi there! Thank you for taking the time to leave a review for our GK1 UNIVERSAL Top Picatinny Rail. We are thrilled to hear that you are happy with your purchase and that our products have exceeded your expectations. We are sorry to see that you only left a one star rating, as your review seemed to be very positive. Is there anything that we can do to improve your experience and earn that extra star? We value your feedback and appreciate your support. Thank you again for choosing our product!