The HIPERTOUCH 24
fire-control drop-in is a high performance, high precision, service
rifle upgrade that installs in AR-15 and AR-10 type rifles. The
HIPERTOUCH name is short for HIgh PERformance TOUCH and 24
for user adjustable trigger weights between 2 and 4 lbs. It's the "AR"
fire-control upgrade we've all dreamed of. For installation and
operational features of the HIPERTOUCH family of AR fire-controls watch
the 24 videos above. View this graphic, AR-15LowerCavity.PDF. HIPERTOUCH FCGs may not work in lowers with pivot holes that are outside the MIL-Spec dimensions shown in RED.
The Genius of the HIPERTOUCH Fire-Control
HIPERTOUCH FCGs have uniquely solved two problems with stock AR triggers and AR trigger upgrades respectively: 1) High Trigger Weight, and 2) Low Hammer Fall Energy.
Trigger Weight: The real culprit behind high trigger
pull weight is high sear impingement force that produces high friction.
To get around that, the stock "AR" trigger and hammer mechanical
advantage was changed and the toggle spring feature added to reduce the
impingement force on the trigger sear. Designers of two-stage products
changed the functional location of the primary sear; HIPERFIRE's design
has not, retaining the stock design's single-stage simplicity. This is
important for when stock triggers are pulled, the hammer cam-action
signals hammer fall is imminent. When 2-stage triggers are pulled, the
final higher weight stage also signals hammer fall. This can lead to the
flinching problem we all know about. Some like to say the better
2-stage triggers have glass rod or candy-cane like breaks to sell the
idea that they don't signal hammer fall. In any case, the HIPERTOUCH 24
does not signal hammer fall because the trigger weight is constant over
the entire stroke.
Hammer Fall Energy: HIPERTOUCH
features the unique toggle spring functionality that reduces trigger
weight, but while doing so, it also increases hammer fall energy by over
35% over the MIL-spec stock design and every trigger upgrade in the
market. This permits the shooter to ignite hard MIL and foreign primers
as well as hard to ignite 22 rimfire ammunition.
HIPERTOUCH FCGs ratain Eugene Stoner's design of
simple elegance while remaining very robust, without the gritty feel.
Shooting for high accuracy is no longer an almost impossible chore. It's
no longer necessary to improve the stock performance by manually
polishing the high-friction trigger and hammer sear surfaces, where the
end result was only marginally better anyway.
Ambitious sportsmen and marksmen have been turning to
trigger upgrades with varying degrees of satisfaction. The better
replacements have been one and two-stage triggers with fixed final
weights ranging from between 2½ and 4½ pounds with what some have called
a glass rod or candy cane trigger break. Some of these devices require
factory or user calibration, maintenance, and/or replacement for wear or
doubling. Some of these devices also employ reduced power springs,
which have compromised reliable ignition for a "dream" trigger weight.
The HIPERFIRE "AR" accessory response to those
shooter's looking for a single-stage and very much improved, match
quality, "AR" trigger upgrade that delivers high performance is the
HIPERTOUCH 24. It nests in unmodified standard AR-15 and AR-10 type
lower receivers in the same way as stock "AR" triggers and hammers
without having to remove the safety selector. It is comprised of three
subassemblies: the trigger, hammer, and toggle, spring groups. All the
parts are made from carbon steel alloys that have been hardened for wear
and strength. It features exceptionally low trigger weights with smooth
pre-travel, a very clean hammer release with no report to break, match
action response, and faster hammer lock-up. Only now with HIPERTOUCH
trigger and hammer actions does "AR" trigger "squeeze" have real
Safety/Selectors: HIPERFIRE knows of several aftermarket safety selectors that will not work with HIPERTOUCH 24 series triggers.
The frame component of the HIPERTOUCH 24 FCG that provides the
toggle spring system support is designed to ride on the barrel of
semi-auto or "MIL-spec" safety/selectors (not full-auto). This permits
normal functional rotation of the safety/selector.
Some ambi safeties listed do not have a large contiguous
cylindrical barrel surface like the stock version; two or more channels
or a small diameter barrel have been cut into them that accepts the rear
of the trigger when pulled into over travel. The toggle spring frame
drops into these channels, which not only relieves necessary compression
of the toggle springs but may also prevent free rotation of the
safety/selector or even cause rotation of the selector during repeat
fire as in the number two case above. More information is available here: