U.S. Bullet Proofing, Inc.

Ballistic, Blast, Storm Impact and Forced Entry Resistant Systems

16201 Branch Ct.
Upper Marlboro, MD 20774
Phone: 301-218-7920
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The 400 Series curtain wall window is a thermally broken, aluminum framed blast and ballistic window. This curtain wall window system reduces installation costs and provides high levels of protection. Forced Entry protection is also available.


  • Ballistics: UL 752 Levels 1-8, NIJ I, II-A, II, III-A, III

  • Blast: Calculations to be provided per UFC / ISC criteria

  • Storm Impact: Tested to FEMA 361 and ICC500

  • Forced Entry: ASTM F1233 and F588

  • Frame Sizes: 2 1/2″ W x 4 1/2″ with custom sizes available

  • Glazing Thickness: 1″ to 2-3/8″

  • Available with thermally enhanced or full 1″ thermally broken frame for optimal energy conservation

  • Applications: Ribbon, store front, curtain wall and punched openings


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