AR Pistol 4.2" Free Floating Quad Rail
•T6 6061 Aircraft Aluminum
•Bead Blast with Type III Anodizing
•Precise CNC machining
•Mil Spec 1913
Picatinny Overview HG-M1031-4.2 4.2" Free Float Rail Systems guarantee precise fitment with your Mil Spec Standard AR M4 5.56 Nato/.223 upper receiver.
All aluminum T6 aircraft 6061 construction with level III hard anodize finish.
This accessory rail configuration is designed for AR M4 style pistol upper. Warranty All FSI Rail System carries a 100% satisfactions guarantee against manufacturer's defect in original materials and workmanship.
If your FSI Rail System shows evidence of such defects, FSI will fix, repair, or replace your accessories at the most cost effective manner possible.
FSI does not warranty products or damages caused to our products result from in-proper installation or in correct installation of other manufacturer's products.
Be sure to keep your sales ticket or receipt as proof of purchase date when making a claim.