UTG PRO Model 4/AR15 Car Length 7" Free Float Quad Rail Model#: MTU005 $55 shipped conus- PayPal, MO, Check, Cash.. No trades at this time. I could possibly do a FTF in Beaverton on a weekday during the day (9-4) with a little notice. • Proudly Designed and Made in USA • 7" Free Float Quad Rails for AR15 Carbine • Compatible with Both Gas Tube and Adams Piston System • Slim Profile and Ultra Lightweight Design • Solid Aircraft Aluminum Construction with Hard Anodizing • Precision Machined and Torture Tested for Max Durability • Un-impeded Top Rail Platform Consistent with Flat Top Rails • Complete with Universal QD Swivel Housing Specifications: •Material: Aluminum •Weight: 9.9 oz. •Pieces: 1 •Rail Type: Picatinny/Weaver •No. of Rails: 4 •Length: 7.30 inch •Width: 2.10 inch •Height: 2.40 inch It comes with 10 rail covers as well, I have two more somewhere - I just can't find them. I needed a little more ID, so I had to get a different rail. online - http://leapers.com/prod_detail.php?mitem=&level1=&level2=&itemno=MTU005&status=utg Any questions - just ask.