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Discussion Starter · #1 · (Edited)
Selling my POF P-415/416 C.R.O.S. 16" upper to start a SBR project
flawless function with Remington, WWB and Ranger rounds 500 rds fired
**Comes with**
a modified MI rail and stock plastic handguards
Tango down FDE vertical grip
FDE rail ladder panels
Teflon coated BCG

Lower, sights and Aimpoint not included
has a few places where the paint is removed from mounting my Aimpoint on the rail but no nicks or marks
4150 Mil-B-1159F Vanadium alloy (machine gun rated)
70 Rockwell case hardened heat treated "5R" polygonal barrels are
2 times harder than Mil-Spec & hammer forged barrels
Corrosion resistant and 10 times thicker and hardness than
Mil-Spec chromed lining
“5R” Polygonal right handed 1x8 twist cut button rifled barrels from
Rock Creek Barrels, Inc.
BC-A5 Muzzle device
Chamber: 5.56 mm NATO (.223 Cal.)

Method of Operation:
Gas piston operated, rotating bolt (short stroke system)
2-position gas plug for Normal (N) or Suppressed (S) operating modes
C.R.O.S.™ (Corrosion Resistant Operating System)
Chrome plated: Barrel, Gas block/tube (billet machined), Gas plug
(billet machined), Gas piston (billet machined), Bolt carrier assembly
(one-piece billet machined), Silicone Nickel plated A3 Flattop upper receiver and charging handle

Bolt & Carrier:
Nickel Teflon plated 8620 Integral keyed steel bolt carrier
(billet machined), heat treated/plated per Mil-Spec
Chrome plated bolt, heat treated to Mil-Spec

Upper Receiver:
A3 Flattop, Forged 7075 T-6 Aircraft aluminum alloy
A3 Flattop: Nickel Teflon plated
Charging handle: Nickel Teflon coated

Will take $1100 shipped USPS Money order or discreet paypal +3.5%
in original box, reduced $1000 shipped

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