We’re proud to introduce the Rail Attach Shield – XL, RAS-XL
The RAS-XL was born out of the requests from our customers for a larger diameter shield to accommodate the numerous suppressors up to 1.9″ in diameter.
Product Specifications

Measurement guide for length of Rail Attach Suppressor Shields.
1. Measure from end of forearm to the end of the suppressor.
2. Select the closest part number to this length.
Example Measurement A = 5.9″
Choose part 18B-015-AR15-6 (6″ of coverage)
Part # | Length Coverage (Inches) |
18B-015-AR15-6 | 6″ |
18B-015-AR15-6.5 | 6.5″ |
18B-015-AR15-7 | 7″ |
18B-015-AR15-7.5 | 7.5″ |
18B-015-AR15-8 | 8″ |
18B-015-AR15-8.5 | 8.5″ |
18B-015-AR15-9 | 9″ |
18B-015-AR15-9.5 | 9.5″ |
The Rail Attach Shield-XL (RAS-XL) is primarily designed for use with large diameter suppressors (larger than 1.7″). RAS-XL Suppressor Shields are compatible with ONLY certain forearms. These forearms currently include:
– AR-15
The Picatinny Rail Grabber is machined specifically for each of these rails, and is not cross compatible with other similar rails. while they may work on some other platforms, we do not guarantee any fitment.
If your Agency, unit or department is interested in the RAS-XL system for your specific rail, please reach out to Info@modtac.us
Temperature Testing
M-RAC Suppressor Shield Temperature Testing
Temperature testing was conducted independently by SFARTAEC Instructors at Ft. Bragg, NC. Equipment: US Army M4 / URGI (11.5″) 5.56mm NATO, Geissele Rail, Surefire SOCOM Suppressor, MODTAC M-RAC Suppressor Shield 2.0
Course of Fire was 10 rounds per minute for 9 minutes (3 mags) totaling 90 rounds, followed by monitoring of temperatures during cool down cycle.
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