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  • Can I

    Asked 05/30/2019 11:51 AM CT
    by unnamed user in Long Gun

    Ruger AR556 .223 16.1 FLD 30R BLKSYN Ruger AR556 .223 16.1 FLD 30R BLKSYN
  • Can I install a AR-15 Extended Quad Rail Handguard with FSP Cutout at Carbine Length from monstrum ? I want to be able to keep the front sight gas block and have a quad pic rail. I know it’s pretty specific but if y’all do know and can help that would be awesome


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  • 05/31/2019 03:02 AM CT
    by Michael W - Lifetime Points: 1536
  • Jake, The Monstrom and most of the other carbine length quad rails that have cutout for the A2 front sight still need to be modified to fit around the bayonet lug. Especially on the Ruger model 8500 AR556. A dremmel or angle grinder with good cutting wheel will make cut out you need for it to fit and function.

  • 05/30/2019 12:18 PM CT
    by James G - Lifetime Points: 30282
  • Jake, this will work : budsgunshop.com/catalog/product_info.php/products_id/714005316 ----- it works around an A2 Front Sight Post Buddy Picture here : google.com/search?q=Leapers+UTG+PRO+AR-15+Drop-In+Quad+Rail+Extended+Carbine&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjGyOuEn77iAhWGylkKHdL0B6kQ_AUIDigB&biw=1920&bih=916#imgrc=kG-MV3BLmIr1-M:

  • 05/30/2019 12:01 PM CT
    by trevor d - Lifetime Points: 1017
  • Jake, on just about any other AR I would say yes but the Monstrum site mentions the AR556 specifically saying it will not work without modifications, the non standard bayonet lug on the front sight block interferes with this rail. https://monstrumtactical.com/ar-15-quad-rail-extended-drop-in-fsp-cutout/