ISO 9001:2015 Registered. Our products are manufactured in compliance with the Berry Amendment.
© 2019 Lewis Machine & Tool Company all rights reserved. All weights and measurements are approximate.
100% USA Made. LMTDEFENSE.COM
DEFENSE
SOPMOD
m4
DMR
monolithic rail platform
PISTON
MRP
Model MRP Piston
Caliber 5.56 x 45 NATO, 6.8 spc
Operation Piston Operated
barrel length 12” - 16”
Handguards 1913 STANAG 4694 Rail, lm8, mlok
Finish
Mil-Spec Anodized Aluminum
Mil-Spec Phosphated Steel
Buttstock m4, SOPMOD, DMR
Muzzle Device A2 Birdcage or LMT 3-Prong
Fire Control Safe / Semi / Auto Available
With the development of the monolithic upper re-
ceiver, LMT® harmonized durability, modularity, and
accuracy in the assault rifle platform. The MRP® is
the most robust and accurate rifle system in service,
and is absolutely the most modular. The availabili-
OVERVIEW
ty of 3 buttstocks, 6 upper receivers, and over 14 barrels
allow for at least 250 different configurations. This one
system can fulfill the role of a close quarters battle rifle
or a lightweight DMR, and it can make that transition in
mere minutes without an armorer. The MRP® features an
ambidextrous charging handle, fully ambidextrous low-
er, improved ergonomics, and is considered by many the
next generation of infantry rifle.
Stock Weight Difference Length Difference Description
SOPMOD Standard Standard
Special Operations MOD stock, 6-position, with rubber butt pad, cheek weld, and
waterproof battery tubes.
m4 -0.35 lb / -0.16 kg -1” / -25.4 mm M4 Standard Issue 6-position Buttstock
DMR +0.63 lb / +0.29 kg +1.4” / +35.6 mm
Designated Marksman stock 3-position, with telescoping rubber butt pad, and
adjustable cheek weld.
The SOPMOD butt- This is the buttstock Our Designated Marks-
Its mo-
man Rifle stock, or DMR
for short is exception-choice of USSOCOM
and numerous mil-
itaries and law en-
forcement agencies is
stock is the preferred you would find on a
standard issue M4
rifle system. This ally flexible.
battle-tested stock bile buttpad and cheek
SPECS
BUTTSTOCK
both light weight weld provide shooters
worldwide. and effective. a comfortable and con-
sistent sight picture.
ISO 9001:2015 Registered. Our products are manufactured in compliance with the Berry Amendment.
© 2019 Lewis Machine & Tool Company all rights reserved. All weights and measurements are approximate.
100% USA Made. LMTDEFENSE.COM
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DEFENSE
PISTON
MRP
upper receiver BARREL
Barrel Twist Rate & Material
Upper
compatability
Weapon Length
SOPMOD Collapsed
Weapon Length SOP-
MOD Extended
Weapon Weight
12” 5.56 (.223) 1:7” Chrome Moly carbine only 29” / 737 mm 32.3” / 820 mm 6.94 lbs / 3.15 kg
14.5” 5.56 (.223) 1:7” Chrome Moly carbine only 31.5” / 800 mm 34.8” / 883 mm 7.23 lbs / 3.28 kg
16” 5.56 (.223) 1:7” Chrome Moly carbine only 33.0” / 838 mm 36.3” / 921 mm 7.39 lbs / 3.35 kg
16” 6.8 spc 1:7” Chrome Moly carbine only 3 7.0 ” / 940 mm 40.3” / 1022 mm 7.39 lbs / 3.35 kg
The table above provides only the most
common barrel offerings from LMT® and is
12” Chrome 5.56 piston
only about one third of barrels compatible
with the MRP® system. Our barrels are cryo-
genically treated for lasting durability and
14.5” Chrome 5.56 piston
thoroughly tested for quality and accuracy.
Barrel change does not require any special
tools, is as simple as the removal of two
screws, and can be performed in under one
minute
16” Chrome 6.8 piston
16” Chrome 5.56 piston
Upper Weight Difference Description
CQB Standard Quad rail with 14.5″ of rail at 12 o’clock; 8″ rail on 3, 6 and 9 o’clock.
LM8 -0.078 lbs / -0.036 kg 14.5″ of rail at 12 o’clock; 3, 6 and 9 o’clock have installation points for LMT rail segments.
MLC -0.262 lbs / -0.119 kg 14.5″ of rail at 12 o’clock; 7 remaining sides have MLOK attachment points.
LMT® produces the only one-piece upper
receiver in the industry. Made of high grade
CQB
aluminum, this provides a top end that is
both durable and accurate. Its unique de-
sign allows the operator to change barrel
lm8
length and caliber in under one minute
with minimal point of impact shift. Piston
MRP barrels are compatible with all three
mlc
carbine length upper receivers.
