Mossberg® Tactical Accessories

Havlin Sales & Service is pleased to offer a line of both factory and quality after-market accessories for the tactical, law enforcement and home defense line.

All items are new unless otherwise specified. Also check our section on

NEW! Limited Quantity Vintage 1991 Mossberg 500/590 Military/LE Factory Armorer’s Manual $19.99

New from Havlin Sales!
Customize Your Mossberg with MAX MOUNT™
Deluxe Tactical Scope Rail/Shotshell Holder
Max Mount
Fits Mossberg 500.590.535.835 with drilled and tapped receivers
Made in USA

Max Mount

Max Mount

Holds (5) 12 GA Rounds - Standard or Combat Easy Load from Top or Bottom
Military Grade Aircraft Alloy Base and Rugged Hi-Tensile Polymer Shotshell Holder

Installation Option: Shown on Model 590A1 with Tactical Scope

No need to replace factory parts. No Gunsmithing. Mil-Spec 1913 Picatinny Rail. Uses the 4 holes drilled and tapped on top of receiver. Screws provided.

Deluxe back and radius relief for maximum strength and weight reduction

Offset positioning of shell holder allows for maximum rearward pull on both tactical and sporting forearms

$59 close out

MODEL 500/590/835

Closeouts from UTG – Ultimate Tactical Gear

Flashlights, Lasers, Mounting Systems and Scopes


Universal Shotgun/Paintball Tri-Rail Barrel Mount

Item MNT-BR003XL $22.50

Solid Aluminum Construction with Matte Black Finish

Clever 3 Piece Design for Clamping Shotgun/Paintball Barrel and Flashlight Tube

Length: 1.6" (3 slots each side)

Compatible Firearm Barrel Range: Diameter.75"-1.1"

Flashlight Clamping Range: Diameter.75"-1.0"

Universal Shotgun/Paintball Single Rail Barrel Mount

Item MNT-BR003XLS $9

Solid Aluminum Construction with Matte Black Finish

Smart 2 Piece Design for Clamping Shotgun/Paintball Barrel

Length: 1.6" (3 slots)

Compatible Firearm Barrel Range: Diameter.75"-1.1"



New Gen UTG® Combat Tactical W/E Adjustable Red Laser Sight with Weaver Ring

Item SCP-LS268 $39

UTG Tactical Red Laser Sight

TS Rated Laser with Precise and Wide Range Windage and Elevation Adjustments

Ambidextrous Push-button Pressure Switch and Batteries

Complete with Weaver/Picatinny Ring


UTG New Gen 4" Tactical Red/Green 38 mm Dot Sight

Item  SCP-RD40RGW-A $39

4" Tactical Red/Green Dot Sight, 38 mm tube, 4MOA Target Dot
Complete with Integral Picatinny Mounting Deck
Double Locking Nuts and Flip-Open Lens Caps



Easy to install – four mounting screws included

Introducing the latest entry in the Mil-Spec series of mounts, parts and sighting systems, manufactured to Mil-Spec 1913 requirements. The M500R will mount a variety of tactical accessories and scopes to your Mossberg® 500/590 or 835 pump shotgun receiver. Also adaptable to the new 930 and 935 autoloaders if drilled and tapped (separate front screws provided). Mfg by Havlin Sales.

M500R-8 8 x 40 TPI for receivers 1997 and newer $26.50
M500R-8 6 x 48 TPI for receivers 1996 and older $26.50
M930R-8 w/ special front screws for 930/935

Actual length 5 inches. Rugged anodized high quality finish.  Made in USA.

M500R8 shown on Mossberg 590A1
Scope not included.



Ambidextrous Tactical Shotshell holder attaches to stock with pre-drilled holes. All hardware included. Lifetime warranty. Made in USA.
Item: TSSH4100 $18


ATI does it again with a tactical stock that both collapses AND folds!  Fits the Mossberg® 500/535/590/835 and Maverick® 88™ pump shotguns, plus adapts to the Winchester® 1200/1300 and Remington® 870™ pump shotgun.  Collapsible, six position buttstock with pistol grip changes length of pull from 9-1/4” to 13/3/4” and side folds for easy storage/transportation.  Non-slip removable rubber buttpad, removable/adjustable cheekrest, matching pistol grip, virtually indestructible matte black glass-filled nylon construction.  Sling swivel stud included. Not appropriate for the tactical shell holder due to folding feature.
Item:  TSG4200

TSG4200 shown in folded and open position on Mossberg® 590® receiver 

FRG6300 Pistol Grip/Heatshield Package $75
Forend & Rear Pistol Grips and Mounts
Heatshield Made from Formed Steel with Black Oxide Finish
Sling loop on rear Pistol Grip
DuPont® Extreme temperature Glass Reinforced Polymer

Package includes Mounting Hardware and Adapter Kit which allows installation to
Mossberg 500*/590, 12 Gauge
Remington 870, 12 Gauge
Winchester 1200/1300, 12 Gauge

*Synthetic forends on new Mossberg 500A cannot be replaced because action bars are attached to the forend.


Tactical Shotgun Forend 

Item: TSG0300 $55
Constructed of Military Grade DuPont® Extreme Temperature Glass Reinforced Polymer
Rail locations at 90˚ Increments Around Forend
Picatinny Rails Allow for Easy Installation of All Your Favorite Accessories
Very Tough, Yet Extremely Lightweight
Tactical Shotgun Picatinny Rail Package
One Left 2" Picatinny Rail
One Right 2" Picatinny Rail
One 2" Bottom Picatinny Rail
Three Blank Inserts for When Rails are Not in Use.

Every Forend Package includes an adapter kit which allows installation to:
Mossberg 500*/535/590/835, 12 Gauge
Remington 870, 12 Gauge
Winchester 1200/1300, 12 Gauge

*Synthetic forends on new Mossberg 500A cannot be replaced because action bars are attached to the forend.


Synthetic Speed-Feed® stock, 12 ga Black or Woodland Camo, holds 2 extra shells in each side of stock. Fits all Mossberg 500/590/835 12 ga pump shotguns, and Maverick®88. Made in USA.
Item: SPDFD BLK $60
Item: SPDFD CAMO $60


Mossberg® factory synthetic forearm, black, tactical ribbed design, for M590 and older M500 long action slide assembly (pre-serial K850xxx). 12 ga only. Made in USA

Synthetic Stock:  Black, fits all 500/590/835/535 and Maverick 88, with recoil pad
Combo sets black forearm 7-5/8” with plain stock or Speed Feed Stock
ITEM: COMBOSYNBLK $55 (with plain black stock)
ITEM: COMBOSYNSPDFD $75 (with black Speed Feed stock )


Mossberg factory synthetic black pistol grip kit, fits pump Mossberg® 500/590 and 835 pump shotgun, plus Maverick® 88. Hardware included. Fits 12/20 gauge shotguns. Made in USA.

Item: 500PG


Mossberg® factory heat shield kit with all mounting hardware. Parkerized or blue finish. Made in USA.
Item: HSPARK $34 (parkerized standard diameter)
Item: HSBLUE $27 (blue standard diameter) Out of Stock, no ETA

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