GLOCK Gen5 6.1MM FIXED REAR SIGHT (POLYMER) $5.00 (0) No Reviews yet SKU: 6437 Quantity discounts available QuantityPrice QTY. -+ Add to Cart Product Description 6.1mm Rear Sight Polymer GMS for Glock 17, 19, 34 & 45 GEN5 Reviews 0 BackRatings & ReviewsNo reviews availableBe the first to Write a Review