For Sale: SOLD
Hard to find ARMS #38S-EX-MOD in excellent condition. This model is designed to slide on to the flattop receiver where it attaches with 3 bolts and continues sliding on to a KAC M4 RAS or RIS where it attaches with three additional screws into the threaded holes on the top of the RAS/RIS. This will give you an uninterrupted rail from the back of the receiver to the front end of the RAS/RIS (this model does not have the PEQ-2 mount at the front). It also helps support the barrel. Back part of rail has a flip-up BUIS with the latest ARMS low profile windage knob. BUIS has a standard A2 aperature, but I will include the shaved "horizon line" aperature that came with it as well.
Price is $150.00 which includes shipping (US only). I would trade for an ARMS #40 BUIS (with the low profile windage knob) and $50. I will take cashiers check, postal money order or PayPal. IM or e-mail me if interested. Thanks for looking.