This is for all the people who are looking for the 18 or 20" barrel for their mossberg 500/590/835 or whatever model you have. Here is the hint CALL MOSSBERG i just got the 590 barrel, tube, spring,endcap, and ghostring sight kit from them for 170.00 (plus shipping under 20.00) & they had it to me in 10 days (even though they quoted 2-4 weeks).... What else can you ask for.