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Watch video: INSTALLATION
Quad-rail / Forend developed for the FN PS90 Carbine. All aluminum construction. Provides 12 - 13 slots per rail. Provides (4) four rails with picatiny / weaver type mounting at 90 degrees all around the barrel. Quick and easy installation.
1. Provides a universal mounting platform for a variety of grips, lasers, lights, etc.
2. Does not interfere with charging handles.
3. Quick and easy installation.
4. Does not affect accuracy (may have to resight carbine).
5. Improves the balance of the PS90 at the grip, (PS90 is rear end heavy).
6. Appearance of the PS90 is greatly enhanced.
Note: Will not fit short barrel P90 or SBR models. Requires standard factory 16 inch barrel.
PS90 Barrel Movement:
The PS90 barrel moves, approximately 0.019 to 0.020 inches rearward in the PS90 rifles. The attachment of the quadrail restricts this barrel movement. The quadrail installation was tested with over 1000 factory rounds of SS197SR in the PS90 over the course of a year. It functioned flawlessly. The ejected brass appears to be visibly normal in every respect as was the function of the PS90.
Warning: The use of this quadrail product may void the warranty of the PS90 by FN Herstal.
PLEASE DO NOT PURCHASE, INSTALL OR USE THE QUADRAIL if you believe it adversely alters the function or warranty of the FN PS90. Please see conditions page for more information regarding warranties.
Quadrail / Forend for the FN PS90 Carbine.
Weight: 11.7 oz (332 grams)
Width: 1.85 inches (47 mm)
Length: 6 inches (152 mm)
6061 T6 aluminumm alloy construction
Black matte color (firearm quality finish)
Top & bottom rails - 12 slots
Two side rails - 13 slots