GL3 x Gel Sight = GL3 RE
https://bdgastore.com/products/gel-lyte-iii-re?utm_source=Bodega+Newsletter&utm_campaign=bfff4e0fd3-EMAIL_CAMPAIGN_2017_05_27_COPY_01&utm_medium=email&utm_term=0_2ff2f2e0be-bfff4e0fd3-87981929&goal=0_2ff2f2e0be-bfff4e0fd3-87981929&mc_cid=bfff4e0fd3&mc_eid=877377c79f