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Our
National Match Spring Guide improves the consistency and smooth motion
of the
operating rod which help reduce wear and increase rifle accuracy over
the
standard stamped GI guide. Our NM
Spring Guides are NOT made from a cut-off stamped GI guide
welded to a
round drill rod. These make-shift NM GI
guides often have a soft magazine catch caused by the welding and may
not be
precisely aligned because of poor fixturing.
Our
NM spring guides are produced to the same specifications
as the military’s national
match rifles. The precision is enhanced by
making them
from one-solid piece of round 8620 tool steel with no welding to cause
distortion. Each is case hardened
to 40-45 HRc in an inert gas furnace to
help maintain straightness and uniform hardness for
long service. They are finished with a
corrosive resistant Mil.
Spec. manganese phosphate (aka Parkerized). What makes our NM Spring
Guides
unique and more accurate is our
precision alignment of the magazine catch to
the guide shaft. This is achieved by
turning the .344 diameter shaft
from a larger diameter solid rod. The
magazine catch is then precision CNC machined while being located from
the
guide shaft. Four flats are milled into
.344 shaft body to reduce weight and friction between the spring which
adds to
the smooth action while precisely guiding the operating rod.
This
product has been field tested in national matches by Dave Ferrante of
Heart
Mountain Precision Machining, who is a gunsmith and distinguished
high-power
competitor (email: crookedbrookfarm@yahoo.com). Approximately 4000
rounds have been
fired from
his match rifle using our spring guide, with no appreciable wear on the
catch
or shaft. Mr. Ferrante states, “It’s
the finest quality guide out there.”
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