KFSIndustries has designed, developed and produced a state-of-the-art chassis for
the Remington 700 rifle. Remove two screws from the existing Model 700 and the
barreled action simply drops in. The result is a fully free-floated stock and
an action that now accepts high-capacity Accuracy International box magazines.
TACMOD™ system is made up of three separate parts: the aircraft aluminum,
folding stock, the Mil-Spec Sierra 7™ bipod and the robust, multiple-optic
scope mount, MOSM™. It is all Made in the USA…designed, machined and assembled
at the KFS factory in Atlanta.
TACMOD system is the answer to the need for a smaller overall rifle package
without compromising either durability or repeatable accuracy. More than that,
the TACMOD is configurable to any Remington 700 caliber or barrel length. It
offers mounting rail options not found on the factory stock, and a fully adjustable
as important TACMOD converts the Remington 700 from a fixed magazine to a box
magazine. The TACMOD uses Accuracy International mags, either 5-round or
10-round versions. A box magazine means both more rapid reloading and a fast
way to change between types of ammo, from anti-glass Tactical to open-air Match,
some aftermarket stocks, the TACMOD stock does not require the removal of the
trigger assembly! There is an obvious liability any time the trigger assembly
is tampered with. The stock design is a simple drop-in with no fitting
required. It is a free-floating design, of course, so there is no need for
glass-bedding the barrel. Simply remove the two mounting screws, lift the
barreled action out, and bolt it to the TACMOD stock for the system upgrade. Torque
the mounting screws to 65-inch pounds.
TACMOD stock is machined from aircraft-grade 6061 aluminum on state-of-the-art
Computer Numerically Controlled (CNC) machines. The TACMOD has a black
Mil-Spec, Class III hard anodize finish. Other finished, i.e., Dark Green, are
available as a special order. The TACMOD stock uses a multiple finger groove
M16/M4 pistol grip for the most traditional feel.
TACMOD stock can be retrofitted to virtually any generation of Remington 700
action and any style of barrel including the Police and the various fluted
barrels. The TACMOD stock is available for the Remington 700 Short Action (223
Rem and 308 Win, for example) in either Right Hand or Left Hand. The TACMOD is
also available for the Remington 700 Long Action (7mm Rem Mag and 300 Win Mag,
TACMOD Sniper Chassis System dates back to 2008 and the efforts of Aaron
Hampton, USA (ret). Hampton is the former team leader of the Army’s
Marksmanship Unit (USAMU). The system was originally developed for the
Remington Model 700 as a logical product improvement over both the US Army M24
Sniper Weapon System and the USMC M40A3 Sniper Rifle.
TACMOD stock has been upgraded a couple of times since the USAMU concept stock.
The most significant has been the extended, Picatinny mount multiple rails. The
most recent product improvement has been to the hinge of the folding stock. The
hinge is the weak point on most folding stock designs. When extended, the stock
on a sniper rifle must be absolutely rigid, completely solid, no movement or
play whatsoever. The Gen 2 hinge is all of that.
original design was a push-button lockup based on the Russian/Chinese AK side
folder. This hinge was just not robust enough and it didn’t lock up tight
enough. The current hinge design is based on the Israeli Galil folding stock.
That said, the TACMOD hinge is even beefier with twice the material.
Gen 2 hinge locks up tight. No movement while aiming. No give under recoil. The
TACMOD hinge is, in fact, massive and almost over-designed. It is as good as
the best in the industry. Both the Right Hand and the Left Hand versions fold
to the left side, which frees up the bolt action lever.
TACMOD chassis comes as a folding stock, which is one of the benefits of the
sniper system. A non-folding attachment is available but by special order only
and a custom fabrication lead time is involved. As rugged and rigid as the
folding version proved to be during our range time, a non-folding version
simply is not necessary.
TACMOD stock uses a fully adjustable, up/down cheekpiece molded from
anti-microbial Kydex® plastic. It also uses a fully adjustable, fore/aft
buttplate. Together, the TACMOD can be customized to the rifleman. The length
of pull is adjustable from between 13.8 and 16.8 inches. The buttstock itself
can be quickly detached for storage and/or transport.
TACMOD Sniper Chassis System is modular, which allows for the addition or
removal of Picatinny rails along the barrel. Our T&E unit had the popular
quad-rail: a Picatinny mount on top of, below and both sides of the barrel. Other
fore end and rail designs, including a smooth fore end with no rails, are
available. The modern sniper wants as many rails as possible, which makes the
quad-rail fore end perfect.
Sierra 7 Bipod
Industries is famous for their ruggedized Versa-Pod bipods. See the cover story
in the July-August 2013 issue of Tactical
Response. (www.hendonpub.com, Resources, Article Archives).
the Sierra 7 Bipod is not a version of the Versa-Pod. The Sierra 7 is a brand-new,
clean sheet design. It was designed specifically to meet the US Army bipod requirements
for the Compact Semi-Auto Sniper System, (CSASS) or M110 Carbine. KFS
Industries based their totally new Sierra 7 Bipod on input from Daniel Horner,
USAMU top 3-gun shooter.
semi-auto, 7.62 NATO caliber, M110 SASS is intended to replace the bolt-action
7.62 NATO caliber M24 Sniper Weapon System. The CSASS will be a shorter and
lighter version of the M110 SASS.
the June 2014 Request For Proposal included some brand-new requirements for a
bipod. One new requirement for the M110 CSASS bipod is that the legs can be set
at a 45-degree forward angle and locked into place. This allows the rifleman to
lean into the rifle, to preload the rifle-bipod system, before shooting. This
preload makes a big difference in how the 7.62 NATO rifle performs downrange.
Sierra 7 Bipod was specifically designed to lock the legs in six different
fore-aft positions: 0, 45, 90, 135, and 180 degrees. The Sierra 7 Bipod fits
any Picatinny rail and is available separately from the entire TACMOD system.
Sierra 7 Bipod comes with the unique KFS “Raptor” feet. With the Army’s needs
in mind, the foot positioning of the Raptor has been changed for the Sierra 7:
One of the spikes now points straight down. A less aggressive bipod foot, the
round neoprene pad, is also available and easily interchangeable. A steel
“sled” foot, larger than the Versa-Pod version, will be available soon.
the hinge in the TACMOD folding stock, the totally new Sierra 7 Bipod is almost
over-designed for durability. It has twice the weight and material of the
hunting-grade competition. The Sierra 7 Bipod is aluminum where it can be but
forged steel where it needs to be. The steel parts are not castings; instead
they are forgings, machined from a large steel billet. The totally new design
also uses legs set out at a much wider and more stable stance. The entire
Sierra 7 Bipod has tighter tolerances and closer fits than anything in their
own Versa-Pod line.
are two major differences between the new Mil-Spec Sierra 7 Bipod and the
current generations of Made-in-USA Versa-Pod bipod. The first is the ability of
the Sierra 7 to rigidly lock the bipod legs at a precise angle forward or
second is the range of motion on the Sierra 7. The ability of the Versa-Pod to
allow muzzle-up and muzzle-down movement was seen as a distraction during
police and military sniper operations. This friction-controlled movement may
have good hunting applications but not so much for police and military sniper
operations. This vertical movement has been eliminated on the Sierra 7 Bipod.
Sierra 7 Bipod has both axial rotation (cant) ability and horizontal tracking
(pan) ability. The bipod will cant along a 60-degree arc. The bipod will track
along a 90-degree arc. The pan tracking is especially smooth—the bipod head
moves on a needle bearing, which is fully enclosed to protect against dust and
moisture. The use of an actual bearing is just another example of over-design
by KFS. They know it often takes an over-design to always function in police
and military scenarios.
angle adjustment is made by rotating the bipod legs on a spring-loaded
clutch-type lock. The clutch has deep notches for positive and repeatable leg
angles. In other words, 45 degrees forward is always exactly 45 degrees, and
for both legs. The Sierra 7 Bipod is currently available in two different
versions: 7- to 9-inch adjustments and 9- to 12-inch adjustments. Both
configurations are available with either steel Raptor feet or Santoprene®
course, the leg length is spring-loaded adjustable and adjustable with one
hand. The adjustment claw makes positive and repeatable contact with deeply
machined notched in the bipod legs. No friction point that is certain to be
different side to side each time the legs are deployed and are likely to slip
under the force of use. In fact, the Sierra 7 Bipod, with legs fully deployed,
can withstand a 1,000-pound load before failure.
Multiple-Optic Scope Mount
Multiple Optic Scope Mount (MOSM) is just what it says. The rugged scope mount
rings are drilled and tapped to accept small Picatinny rails. These short rails
can accept a wide variety of small devices and accessories. Four screws mount
the auxiliary rails to each scope ring. The rails are reversible, extending
forward of the ring or rearward from the ring, whatever is required to fit the
device and scope.
multiple sights? First, the added optic serves as a back-up sight. Few true
sniper rifles have back-up iron sights. Yet some sort of back-up sight is
needed for at least two reasons. The most obvious one is the failure of the
main optic. Even today’s ruggedized scopes can fail. The other reason is a
unique engagement scenario. The most obvious is the use of a 100-yard zero
sniper rifle used to take a quick, close-range shot. At least one police sniper
made a 10-yard shot against a fast-closing doper who had discovered the
the MOSM was designed with the military in mind. The main purpose was to be a
ruggedized attachment point for small Picatinny rails. The key to the
ruggedness—compared to the competition—is how KFS mounts their auxiliary
most other designs, the auxiliary rails are mounted with vertical screws. That
means the heavy recoil becomes a shearing force exerted directly on the shank
of the screw. The heavier the attached device, the more force exerted on the
cross-section of a small screw. With the KFS MOSM, the auxiliary rails attach
around the scope ring mount. The rails are held in place with horizontal
screws. All of the recoil force is absorbed by the main scope mount and none of
it by the auxiliary rail screws.
KFS MOSM Multiple Optic Scope Mount is available for 30mm and 34mm scope tubes.
The trend in tactical and military scopes is toward 34mm. The MOSM is not
available for a 1-inch tube. The MOSM comes in two versions. Both will accept
three auxiliary rails. The Alpha is an ultra-rugged mount with a circular array
of mounting options all around the scope mount rings. It includes a bubble-level
adjustment tool. The Bravo is a lightweight scope mount with side and top
attachment systems but no bubble level.
MOSM is a true one-piece mount that eliminates any misalignment or pressure
spots during scope installation. The body of the mount and the lower half of
the scope rings are machined from a single billet of 7075 aircraft aluminum. The
billet is clamped in a 5th axis CNC machining center and is
machined, drilled and tapped all is one setup.
added ruggedness, the MOSM uses stainless-steel inserts in the aluminum body to
accept Unbrako® cap screws. Like the Sierra 7 Bipod, the Made-in-USA MOSM scope
mount meets the US Army’s requirements for the CSASS rifle project. The MOSM
fits any Picatinny rail and is designed to keep the optic as close to the bore
as possible. The center of the objective lens is 1.44 inches above the rail.
Time on the Range
spent quite a few hours on a couple of different days at the range with the
TACMOD Sniper Chassis System. The barreled action is something you drop in, and
the barrel is fully free-floating. So the shooting impressions are more how all
of the accessories worked and less how accurate the particular barreled action
was. We used Federal Premium 308 Win 168-grain Match HPBT ammo during all the
shooting. All the groups were sub-MOA.
Sierra 7 Bipod was fast and easy to deploy. The Raptor claw feet are
outstanding and a perfect fit for many police sniper scenarios. Of course, the
rubber feet are options and easy to swap out. We shot at the 45-degree forward
position and the lockup was absolutely solid during both recoil and recovery.
The cant and pan were both glass smooth. The legs are held in position by the
heavily notched clutch and the clutch is held together by heavy spring
pressure. To adjust the angle of the legs, simply pull the leg against the
spring pressure beyond the castellated clutch and rotate.
the spring-loaded locking levers, the friction in the Sierra 7 Bipod was easy
to adjust. The adjusting latches are spring-tensioned. Simply rotate the latch
to get the right amount of friction, then lift the latch against spring
pressure and rotate it to whatever position along the bipod you want. The
friction on the cant/track remains unchanged. When everything was
spring-loaded, lever-locked in place, the whole bipod acted as one solid piece
fastened to the rifle. No movement. No give. No play.
TACMOD stock was very easy to tweak for the exact length of pull and the exact
cheekpiece height. Most of all, the folding stock proved to lock up absolutely
tight. Two ramp claws engage one another. These lock tighter and tighter with
pressure exerted on the stock. There was no stock movement whatsoever at any
time during aiming or recoil.
open the folding stock, push down hard on the hinge of the folding section, and
again push down hard in the same spot to close it. In return, you get one of
the most precision-made, closest-fitting, solid lockup folding stocks available
anywhere in the world.
TACMOD system does not necessarily make the rifle lighter. A standard Remington
Model 700-P with fiberglass stock, 1-inch tube scope, standard rings and hunting
bipod weighs about 11 pounds. In comparison, the Remington 700-P with TACMOD
stock, 30mm scope, heavy-duty rings and Sierra 7 bipod weighs about 17 pounds.
major benefit of the TACMOD Sniper Chassis System was seen before we even got
to the range: the compact size of the overall rifle with the stock folded.
Today’s police vehicles are getting smaller: Big sedans are now mid-size sedans
and full-size SUVs are now sedan-based crossovers.
are getting smaller. Trunks are getting smaller. We carry more gear than ever.
The pressure to make police gear more compact affects even specialized gear
like sniper rifles. Of course, it is easier to move into position with a
shorter rifle than a longer rifle.
Industries currently manufacturers all of the components in the TACMOD Sniper
Chassis System. The TACMOD stock, the Sierra 7 bipod and the MOSM scope mount
are also all available separately. Everything is handled through the KFS distributor