$
5,886.90
Rifles
Semi Auto Rifles
AR Rifles
AK Rifles
Bolt Action Rifles
Lever Action Rifles
Handguns
Semi Auto Handguns
AR Pistols
AK Pistols
Revolvers
Derringers
Shotguns
Semi Auto Shotguns
Over Under Shotguns
Side By Side Shotguns
Single Shot Shotguns
Ammo
Rifle Ammunition
Handgun Ammunition
Rimfire Ammunition
Shotgun Shells
Other Ammunition
Optics
Red Dots Sights
Gun Scopes
Gun Sights
Binoculars
Thermal Sights
Range Finders
Laser Sights
Scope Accessories & Scope Parts
Scope Bases
Scope Mounts
Scope Rings
Suppressors
Silencers & Suppressed Firearms
Short Barrel Rifles (SBR)
Class 3 Parts & Accessories
Gun Parts
AR15 Parts
AR15 Lowers
AR15 Uppers
AR15 Barrels
AR15 Stocks, Forends, Forearms
AR Triggers
AR Lower Parts Kits
Other AR15 Accessories & Parts
AR10 Parts
AR10 Barrels
AR10 Uppers
AR10 Bolts
Other AR10 Accessories & Parts
Handgun Parts
Handgun Barrels
Handgun Frames
Handgun Slides
Other Handgun Accessories & Parts
Magazines
Rifle Magazines
AK Magazines
AR Magazines
Handgun Magazines
Shotgun Magazines
Login
Products search
Rifles
Semi Auto Rifles
AR Rifles
AK Rifles
Bolt Action Rifles
Lever Action Rifles
Handguns
Semi Auto Handguns
AR Pistols
AK Pistols
Revolvers
Derringers
Shotguns
Semi Auto Shotguns
Over Under Shotguns
Side By Side Shotguns
Single Shot Shotguns
Ammo
Ready-to-shoot ammunition for firearms.
Rifle Ammunition
Handgun Ammunition
Rimfire Ammunition
Shotgun Shells
Other Ammunition
Optics
Gun scopes – Selection of gun scopes and gun optics.
Red Dots Sights
Gun Scopes
Gun Sights
Binoculars
Thermal Sights
Range Finders
Laser Sights
Scope Accessories & Scope Parts
Scope Bases
Scope Mounts
Scope Rings
Suppressors
All types of federally restricted firearms, including machine guns, destructive devices, and silencers
Silencers & Suppressed Firearms
Short Barrel Rifles (SBR)
Class 3 Parts & Accessories
Gun Parts
Firearm parts or accessories.
AR15 Parts
AR15 Lowers
AR15 Uppers
AR15 Barrels
AR15 Stocks, Forends, Forearms
AR Triggers
AR Lower Parts Kits
Other AR15 Accessories & Parts
AR10 Parts
AR10 Barrels
AR10 Uppers
AR10 Bolts
Other AR10 Accessories & Parts
Handgun Parts
Handgun Barrels
Handgun Frames
Handgun Slides
Other Handgun Accessories & Parts
Magazines
Rifle Magazines
AK Magazines
AR Magazines
Handgun Magazines
Shotgun Magazines
Login
Products search
Other Gun Accessories & Parts
Filters
“GROVTEC MTMX3 EXTENDED MAG – TUBE MOUNT REMINGTON 870 12 GA” has been added to your cart.
View cart
Default sorting
Sort by popularity
Sort by average rating
Sort by latest
Sort by price: low to high
Sort by price: high to low
Show 12 Products
Show
12 Products
Show
24 Products
Show
36 Products
Show
48 Products
Add to cart
View Details
1 O’clock Offset Rail Rock & Lock
Other Gun Accessories & Parts
$
46.00
PLUS TAX
1
Add to cart
View Details
AAC BLACKOUT FLASH HIDER – 5.56 51T 1/2-28
Other Gun Accessories & Parts
$
77.99
PLUS TAX
0
Add to cart
View Details
AAC Blackout Flash Hider 5.56mm 90T – 1/2-28 SR Series Only
Other Gun Accessories & Parts
$
77.99
PLUS TAX
0
Add to cart
View Details
AAC Blackout Flash Hider 51T 7.62mm 5/8-24 Standard Socket
Other Gun Accessories & Parts
$
77.99
PLUS TAX
0
Add to cart
View Details
AAC Muzzle Brake 5.56mm 51T 1/2-28
Other Gun Accessories & Parts
$
97.99
PLUS TAX
0
Add to cart
View Details
AAC Muzzle Brake 7.62MM 51T 5/8-24
Other Gun Accessories & Parts
$
97.99
PLUS TAX
0
Add to cart
View Details
AAC MUZZLE BRAKE FOR MK13-SD – 7.62 90T 5/8-24
Other Gun Accessories & Parts
$
144.99
PLUS TAX
0
Add to cart
View Details
AB ARMS AR ESSENTIALS KIT – 5.56MM AR-15
Other Gun Accessories & Parts
$
41.39
PLUS TAX
0
Add to cart
View Details
AB ARMS AR-15 SMALL PARTS KIT
Other Gun Accessories & Parts
$
17.09
PLUS TAX
0
Add to cart
View Details
AB ARMS BOLT ASSEMBLY – 5.56MM AR-15 NICKEL BORON
Other Gun Accessories & Parts
$
89.99
PLUS TAX
0
Add to cart
View Details
AB ARMS BOLT CARRIER GROUP – 5.56MM AR-15 NICKEL BORON
Other Gun Accessories & Parts
$
197.99
PLUS TAX
0
Add to cart
View Details
AB ARMS CAM PIN 5.56MM AR-15 – NICKEL BORON
Other Gun Accessories & Parts
$
10.79
PLUS TAX
0
1
2
3
4
…
154
155
156
→
Filters
Filters
Manufacturer
- Select Manufacturer -
Amend2
Hogue
Winchester
HKS
Leapers
Magpul Industries
Armaspec
Fail Zero
Pachmayr
KNS Precision
Ghost
HERA Arms
Springfield Armory
CMMG
LBE Unlimited
HEXMAG
ProMag
TangoDown
Ruger / Sturm, Ruger & Co.
ATI Outdoors
Shield Arms
Luth-AR
Wilson Combat
Elite Tactical Systems Group
Strike Industries
X-GRIP
Mission First Tactical
NcSTAR
Century Arms
GrovTec
FN America / FN Herstal
FAB Defense
Bravo Company Mfg / BCM
Kinetic Development Group
Battle Arms Development
ALG Defense
Lantac USA
Rival Arms
TROY Industries
Rise Armament
Patriot Ordnance Factory
Maglula
CMC Triggers
Fortis Manufacturing
Mec-Gar
SGM Tactical
MagPod
Safariland
Midwest Industries
KelTec
Nordic Components
B5 Systems
Apex Tactical Specialties Inc.
Glock
Seekins Precision
Heckler & Koch / H&K
Samson
Rugged Suppressors
DoubleStar
ADCo International
Hi Point Firearms
Lancer Systems
Caldwell
Backup Tactical
Chiappa Firearms
Michaels
Guntec USA
Noveske Rifleworks
TPS Arms
American Built Arms Company
D&H Tactical
Adaptive Tactical
Trijicon
TacFire
Ergo
UTG
Carlsons
J&E Machine Tech
Ghost Inc.
Cruxord
Sig Sauer
Beretta
Aero Precision
E-Lander Mags
Byrna Technologies
TRUGLO
Manticore Arms
Talley
Del-Ton
Great Lakes
Tactical Solutions
Mag Storage Solutions
Phase 5
Reptilia
Odin Works
Grip Pod
Savage
Kriss TDI
Lone Wolf Distributors
The Outdoor Connection
Butler Creek
Iver Johnson
GG&G, Inc.
Ed Brown
Shadow Systems
Edgar Sherman Design
Q LLC
Rock River Arms
Mesa Tactical
Elftmann Tactical
Bootleg
Kahr Arms
Arisaka Defense
Daniel Defense
Advanced Armament Corp
Tikka
Anderson Manufacturing
Sylvan Arms
Alexander Arms
ZEV
Firefield
Advanced Tech
Hatsan USA / Escort Shotguns
Black Rain Ordnance
MasterPiece Arms
CZ-USA
Area 419
LWRC
Magnum Research
Ameriglo
North American Arms
MDT
Faxon Firearms
Mossberg
Tippmann Arms
Accu-Tac
Limbsaver
Bergara
Riton
Browning
Gemtech
Evolution Gun Works
Christensen Arms
Steyr Mannlicher
Bersa
Grey Ghost Precision
Bond Arms
Angstadt Arms
Sharps Bros
SAR Arms
Walther Arms
Anschutz
B&T
Ultradyne USA
XS Sights
Rifle Basix
BLUE LINE GLOBAL
Inland Manufacturing
Command Arms
True Precision
Arsenal Firearms
Night Fision
Griffin Armament
Hiperfire
Kick's Industries
SB Tactical
Franklin Armory
Trigger Tech
J.P. Sauer & Sohn
Timney
Primary Weapons Systems
Sako
Diamondback Barrels
Barrett Firearms
Stern Defense
Stealth Cam
Magpump
Kynshot
WMD Guns
ACE
American Defense Mfg
Model
- Select Model -
MIAD/MOE Storage Core
Anti-Walk
Mag Sleeve
A2 Birdcage
Shotgun
Magazine Release
Standard
Pistol Mags
Anti-Walk/Anti-Rotation
27
M-LOK Rail Covers Type 2 Half Slot
Vickers Tactical
Mag Spacer
42
M-LOK Polymer Rail 9 Slots
GTSW23
M&P
M-LOK Rail Covers Type 2
45 Degree Offset Rail Mount
KeyMod Rail Section
M-LOK Polymer Rail 7 Slots
P320
M-LOK Picatinny Rail
Signature
Connector
Gas Tube
Enhanced
Moon Clip
For Glock 43
M-LOK Polymer Rail 11 Slots
M-LOK Rail Covers Type 1
GTSW40
AK-47
Glock 43X/48 Mag Catch/Release
Bolt Catch
Lower Parts Kit
Upper Parts Kits
HFG
M-LOK Cantilever Rail/Light Mount Polymer
For Small/Medium Frame Glock
Anti-Walk Pin Set
Double Stack
M-LOK Tape Switch Mounting Plate
Vertical Grip
SSG
Tactical
M-LOK Aluminum Rail 3 Slots
Crush Washer
Replacement Magazine
Comp l
Comp II
M-LOK Offset Light/Optic Mount
1911A1
Engage
MOE
12GA/20GA
M-LOK Rail Covers
AR Parts
Evolution Keymod Quick Detach
Flared Magwell
1911
M-LOK Aluminum Rail 5 Slots
Shim Kit
Mother of All Baseplates
Safety
43
Super Thumb
26
17
19
L5AWM
.750 Internal Bore
MOE SL
Officers
Revolver Cylinder
Grip
Mag Loader
M-LOK Handstop
Type 23 P-Grip
Type 22 P-Grip
P-Grip
End Plate Sling Adapter
Complete Spring Set
Value Line
Quick Detach Sling Mount
M-LOK Aluminum Rail 7 Slots
Bravo
For All Glock Gen 1-4
A2-42
For Glock Standard
Extended Charging Handle Latch
One Shot Sled
Honeycomb
Low Profile Gas Block
AR 308
M-LOK Aluminum Rail 9 Slots
L-Plate
M-Lok Picatinny Rail 5 Slot
XPR
Henry Big Boy
Shockwave
Henry Golden Boy
Universal Hammer
Edge
LULA
CQG NB
Butt Pad
3 Inch Picatinny Rail Section
M-LOK Bipod Mount
LRM
1913 Picatinny Rail 11 Rib Cover Panel
92
Picatinny
Frame Pin Kit
React
Pop Bottle
Scorpion
B2
AR-15
Rubber Grip
Universal Handguns
Auto Catcher
CQG L
M4
M-LOK Rail Section
Ejection Port Door
M3
700
American
Adjustable Tactical Grip
OverMolded
ASAP
Rubber Bantam
STEALTH
Barricade Stop
Blackhole
XMR
Commander
Rack-It
Vector
3895
Enhanced Fore Grip
2.2 Inch 5 Slot M-Lok
Enhanced Modular Magazine Release
Mil-Spec Buffer Tube
X1
Heavy Duty
Choke Tube Case
Lucy
Heavy Buffer
StripLULA
Diamond Pro
.223 REM/5.56 NATO
Omega
Hellcat
Magazine Cinch
GTSW46
Monogrip
Conversion Monogrip
APX
Linear
M-LOK Handguard
10/22
Thread Crown
Single Shot Adapter
G-NITE
Rival
Forend
Guide Rod Assembly
Retro
Flash Hider
Slide Back Cover Plate
Angel
Grip Panels
Thread Protector
500
Ultimate Safety Plunger
Roller Cam Pin
MPX
308
C.A.M
P365
Mag-Ex2
Performance Connector
Safety Selector
Ultra Combat
77/17
Clutch
OEM
SideSaddle
Spring Kit
Tamer
Compact
Suppressor Cover
Low Profile
Recoil Pad
UpLULA
M-LOK
Px4 Storm
Evo Elite
Bullet Proof
Single Shot Sled
Spike Claws
Sling Adapter
A-Bolt
Gas Block
BabyUpLULA
Magazine Well
G42 PRO
M-LOK Cantilever Rail/Light Mount Aluminum
Slip On
Scout
Magazine Extension
Full Length
Value
CZ 75
Thumb Safety
Magazine Catch
Rem 870 Follower
Mossberg 590 Follower
Slide Release
Tavor
Benelli M1/M2/M3/M4
HEX FLASHCAN
.1555 Diameter
.154 Diameter
22 QDA
+5 Magazine Extension
SOCC 3" Vertical Grip
S15 +5 Magazine Extension
Bolt Release
M1 Carbine
Replacement Trigger
Grind Away
Flashlight Mount
SCAR
H2 Buffer
Thunder
UPS-S
BLR
870
Pistol Magazine Base
Trigger Guard
Turnbuckle Assembly
Ambidextrous
For Glock Rocket
6 Inch 15 Slot M-Lok
ESK
Front Grip
Beavertail Grip Safety
Blast Can
Stock Adapter
Gripper
Muzzle Brake
Blast Diverter
Ultralight Match Trigger
ST45
FT90
Lightweight Enhanced
Holster Grip
G-Stop
Billet Dust Cover
P-10 S
+5 Magazine Extension for Glock 26
+5/+4 Magazine Extension
ETG
Superlite
Receiver Mounted Shell Carrier
UD Arca Dynalock Rail
Extended Charging Handle
M-LOK to Arca
Pac-Lite
X-Ring
Trail-Lite
Dimondback
Presentation
Benelli
PPS
Barrel Shroud
Rail Wrap
Micro Hand Stop
Remington TAC-13
SFT 45/90
Shok-Buff Recoil
Bipod
X-Bolt
Mossberg
Renegade
UPS-TI
ABS
For Glock Gen 1-4
Bad-Ass-Pro
Honey Badger Barrel Nut
AB3
Stock Base Plate
Folding Holster Grip
BPCC
High Power
Front Sling Adapter
Tread
Micro
EDC
Micro Comp
Rail Slider
Magazine Charger
P226
FNS
Beavertail Safety
Radial
CVA Cascade Picatinny Rail
Contessa
Battlelink
1911 Full Size
M-LOK Grip
AR-15 Flared Magwell
Front Cap
556
M3/M6
M-LOK Dovetail Adapter
Action Enhancement
Barrel Adapter
AK Safety
Sound Mitigation Buffer Gen 3
BAD ASS
Exterior Forend Weights
RED
Micro Carry Comp
Baby Desert Eagle
Vertical Grip Grenade
Triple Port
Performance
22/45
10
Bolt Action Mag Well
Sling Stud Rail Adapter
Precision Striker
A300 Xtrema
BAD-ASS-LITE
Verticle Quick Detach Stud
Buffer & Spring
Thread Adapter
Fix Multi Tool
Mirage Cover
452
RPS
Hipercomp Gen2
Sled Feet
Thumper
Kinect
Hybrid
Scarging Handle
DNA
Precision
Piston
Sentinel Sling
SL8
G-Comp
3 Lug Adapter
Speed Loader
BX Trigger
M2 Brake
Ultralight Skeleton Hammer
Two Piece Magwell
Select
Sup Suppression
Magwell
MXT
Victory
No. 1
SureShell
Mark 2
Nova
Premium Magwell
Adjustable Gas Block
R3
Flash Hider Front Cap
R3L
Adjustable Low Profile Gas Block
Blackout Flash Hider
AK-47 Folding Stock Adapter
Rack
Rack Charging Handle
RA-701
P365XL
Talon 45/90
AR10 Gun Builders Kit
SOPMOD
AK-140US
Bottle Rocket
Extreme G10
Cherry Bomb
Torque
Enhanced Slide Release
MRAD
Slide Completion Kit
Glock Conversion Block
Atlas
Flashlight & Laser Combo
ATHENA
PULSE
VOSTOK
Tomahawk
Strike Eagle
Bolt Carrier Group
Blackout
Forward Set
Oppressor
M77 Mark II
Tac Pack
littleBOY
Lithium
15
Match Series
CQB
Whistle Tip
Flat-Faced Forward Set Sear & Trigger Kit Polymer
3-Lug Mount
Aluminum
FATman
LEO Adapter
AEK
Carrying Handle
Dragon
SP89
RECC-E
Badlands
Trigger Fix
Super 90
MERCURY
3 Port Brake
Accent Kit
Top Rail
Pistol Grip
CZ Folding Stock Adapter
G2 Two Piece
Drop-In
Hannibal Rail
Hannibal Rail for Ruger Mini-14 (2007/Earlier)
ST-1
Standard BCG
Featherweight Deluxe
Apollo S
KX5
KX3
Duty Series
DDWAVE Muzzle Brake
PEGASUS
SXT Series Handguard
Primary
High Performance Trigger
GGP
Millennium
LID
Apex M&P
Clutch-Lok QD
O2 Lite
Single Stage Curved
AR-15 Carrier
Essential Retro Stock
Hipertouch
X2S
Apollo MAX
Handguard
XPDW
Rev II
Match Grade Barrel
9INE
WORKHORSE 15in Rail and .750 Gas Block
Night Rail
Collapsible Precision Stock
Magpump Pro
Switch
Apollo LR
Special
Cloak
Ultralight Carbon Fiber
Lightweight/Low Mass Bolt Carrier Group
Hit Trigger
AR10
Scar MREX M-Lok MKII
Diamond
Precision Slide
DM Slide
Dawn
Samson Tactical Accessory Rail System
GGP-19
6.8SPC
Stripped Slide
GGP17
Faction Series Slide
Heatseeker
Improved Slide
SR-5 G2
FD-4
WB-5
WB-4
HD-50
PC-5
PC-4
PDW Kit
RIS II
31
PRO 700L
17L
Suppressor Piston
Enhanced Carbine Buffer Kit
Grind-To-Fit
Light Mount V-Block and Rings
Airtech Precision Fit
Plan-B
MK18 RIS II
H3 Buffer
HK P30SK
Rail Light Mount
Fixed Mount
1 O'clock Offset Rail
Skull X
Thread Converter
Spiral Fluted
Barrel Thread Protector
3 Inch 7 Slot Keymod
GTSW43
2.2 Inch 5 Slot Keymod
Ultralight Match
Beretta
Standard Charging Handle
PC 9
HRS CCS
Enhanced Pin Set
TI Front Cap
Extended Slide Release
Q-Sert Arca Swiss Mount
Caliber/guage
- Select Caliber/guage -
12 Gauge
.223 REM/5.56 NATO
20 Gauge
.22 LR
.38 Special
9mm
.45 ACP
.308 / 7.62 NATO
Clamp
.40 S&W
10mm
7.62 x 39mm
.380 ACP
.300 AAC Blackout
.30 Carbine
6.5mm Grendel
Speedloader
Multi-Caliber
6.8MM REMINGTON SPC
.350 Legend
MULTI-FIT
.410 Bore
.22-250 Remington
6.5mm Creedmoor
.270 Winchester
28GA
.30 Caliber
.450 Bushmaster
.458 Socom
.22 Caliber
50 BEOWULF
.204 Ruger
.300 Winchester Magnum
Magazine Well
7mm Remington Magnum
.45 Caliber
7.62MM
.338 Lapua Magnum
.300 Winchester Short Magnum (WSM)
10GA
.270 WSM
.28 Nosler
.300 RUM
.38/357 Caliber (.357-.359)
Multi
Muzzle Brake
.375 H&H Magnum
7.62x39 (.310)
.223 Wylde
20
7MM
Barrel Length
- Select Barrel Length -
16"
18"
3.9''
10.5"
24
20"
14.7"
11.5"
14.5" M4
16" Government
Length
- Select Length -
8.0500
6.2500
10.6500
8.1000
4.6000
6.2000
5.5000
8.1500
8.5500
4.2500
4.9500
8.2000
8.8000
4.3000
4.3500
8.6500
6.9000
3.6000
5.8000
11.5500
6.9500
10.3000
4
8.5000
5.4000
8.9500
3.0500
7.9500
2.5000
4.9000
6.00
8.8500
7.8500
7.9
3.8500
7.6000
6.4500
3.9500
8.6000
4.8500
3
4.2000
5.8500
11.5000
9.4500
3.7500
4.4500
4.1500
5.5
5.1500
8.4000
4.7500
9.3500
5.2500
4-1/10 in
3.8000
6.5
11.7500
6.4000
1.5 in
1.80"
6.1500
7.3000
7
4.5000
3-3/10 in
5.7500
7.2000
4.8000
9.5500
6.0500
4.7000
3.7000
5
4.1000
6.6000
9.2000
9.5000
5.7000
6
6.1000
6.5500
4-9/10 in
9.5
12.7000
8.4500
7.5500
11
3.1500
8.3000
4.5500
9.7500
2.5500
6.6500
7.9000
7.5000
2.8000
9.6500
7.3500
10.9000
5.0500
7.7000
4.4000
7.2500
Crush Washer
5.3500
5.6000
11.0500
8
15
6.3500
5.6500
3.3000
5.2000
5.3000
9 3/4
11 3/4
9.1500
4.6
6.3000
6.7500
3.5500
8.7500
6.7000
6 3/4
6.8000
5.4500
2-3/8 in
10.5000
6.5000
9.9000
18.6
9
10.5
4.6500
7.1000
8.2500
5.1000
4.0500
3.2000
9.1000
3.4500
2.9000
9.7000
3.2500
6.8500
9.2500
9.9500
2.9500
7.0500
3.6500
3.9000
3-1/8 in
2.6000
9.3000
7.8000
8.3500
2.7500
2.7000
7.4500
7.1500
7.2
10.4500
8.7000
7.4000
2.6500
14.8
3-7/8 in
15.1000
5.5500
12
9.4000
10.2000
7.7500
5.9500
10.6000
10.1500
3.1000
5.9000
1.5000
2.8500
2.1000
17.4500
12.2000
9.8000
2.7
9.8500
12.2500
10.4000
17.1500
10.0500
9.0500
7.6500
10.9500
11.2500
10.7500
11.8500
14.9500
7''
11.1000
5.7
14.5500
10
11.3500
15.8500
17
13.7
19.5
18.5000
11.4000
3''
18
13.2000
4.25
12.5
13.3500
10.3500
12.5500
16.5500
15.7500
10.6
14
12.8500
13.5
13.5500
7.8
5.8
6.15''
12.1500
12''
13.0500
15.6000
0
1-17/25 in
10.7
9.4
13.4500
9.3''
12.5000
1.6
15.2000
5.50"
5.5"
12.45''
6.7400
17.1000
2.2000
2.90"
19
19.1500
21.3500
23.2500
12.4500
19.1000
11.3000
19.5500
9.9''
16''
2.25
15''
9''
18.1500
18.7500
35.4500
18.7000
22.3000
23.1000
17.5
23.4500
7.7700
19.7500
22.9500
19.0500
23
22.9000
21
21.0500
9.2
15.2
14.2500
28.6
Thread Pattern
- Select Thread Pattern -
AR-15
1/2"-28 tpi
MOBIL
REM CHOKE
ACCU MAG
5/8"-24 tpi
.578" x 28
INVECTOR
TRU CHOKE
INVECTOR PLUS
WIN CHOKE
INVECTOR DS
M14x1 LH
OPTIMA
OPTIMA HP
CRIO-CRIO PLUS
1/2"-36 tpi
11/16"x24 tpi
OPTIMA PLUS
REM PRO BORE
M18x1 tpi
5/8"-24
9/16"-24 tpi
1/2"-28
3/4"-24 tpi
M12x1 LH
9/16x24 LH
49/64-20 RH tpi
M18x1.5 tpi
Quantity
- Select Quantity -
1
10
Show
(
1862
)
Cancel
© 2025 — AdVance Armament
