The FLEX TLS (Tool-less Locking System) is a series of three patent-pending connectors that allow shooters a simple method of switching stocks, forends, and recoil pads for a variety of shooting applications. FLEX base model shotguns and rifles, when used with interchangeable FLEX Stock, Forend and Recoil Pad Accessories (Page 66) can create virtually limitless combinations of fit, style or application. For true cross-platform flexibility, the FLEX lineup includes MVP FLEX and .22LR Rimfire Rifles.

: FLEX TLS components are designed to be removed and remounted in seconds — without requiring tools. Accessories include three Recoil Pad Widths, and Railed, Standard and Camo Forends.

Read: How to Install the FLEX Stock Adapter

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Models New for 2018

ITEM #

GAUGE

CAPACITY

BARREL LENGTH

BARREL TYPE

CHOKES

SIGHTS

LOP

BARREL FINISH

STOCK

LENGTH

WEIGHT

500 Tactical – JIC FLEX

#57340

18.5"

Cylinder Bore

Bead

Pistol Grip

Matte Blued

FLEX Pistol Grip (Black)

28.125"

5.5

DETAILS

FLEX 500 All-Purpose

#50121

28"

Vent Rib

Accu-Set

Twin Bead

14.25"

Matte Blued

Synthetic (Black)

48.25"

7.5

DETAILS

FLEX 500 Combo Deer/Security

#55131

24" & 18.5"

Fully-Rifled Bore/Cylinder Bore

ISB/Bead

12 3/4" - 14 5/8"

Matte Blued

FLEX 4-Pos Hunting (Mossy Oak Break Up Infinity/FLEX Pistol Grip (Black)

44.5"

7.75

DETAILS

FLEX 500 Combo Field/Security

#54320

18.5" & 26"

Vent Rib (26")

Cyl Bore/Accu Set

Bead/Fiber Optic Front

N/A ; 14.25

Matte Blued

31/46.25

5.75/7

DETAILS

FLEX 500 Combo Turkey/Security

#55114

24"

Vent Rib & 18.5"

Xfactor Ptd/Cylinder Bore

Adj FO/Bead

14.25"

OD Green

FLEX Synthetic (Mossy Oak Break Up Infinity/FLEX Pistol Grip (Black)

44.25"

6.75

DETAILS

FLEX 500 Combo Waterfowl/Security

#55117

28"

Vent Rib & 18.5"

Accu-Set/Cylinder Bore

FO Front/Bead

14.25"

Tan

FLEX Synthetic (Realtree Advantage Max-4/FLEX Pistol Grip (Black)

48.25"

7.5

DETAILS

FLEX 500 Hunting

#50124

28"

Vent Rib

Accu-Set

Adj FO/FO Front

14.25"

Tan

FLEX, Synthetic (Realtree Advantage Max-4)

48.25"

7.5

DETAILS

FLEX 500 Tactical

#50673

18.5"

Stand-off/Breacher

Cylinder Bore

White Dot

Pistol Grip

Matte Blued

Synthetic (Black)

31"

5.75

DETAILS

FLEX 590 Tactical

#51672

20"

Cylinder Bore

Bead

11" - 14.5"

Matte Blued

FLEX 6-Pos Adjustable Synthetic (Black)

41"

DETAILS

Mossberg International FLEX-22 Youth Rifle

#37063

.22 LR

18"

N/A

Adjustable Fiber Optic

13.25"

Blued

FLEX, Synthetic Compact (Black)

36.25"

DETAILS

MVP FLEX – Vortex Scoped Combos

#27980

5.56mm NATO (.223 REM)

18.5"

Med. Bull, Fluted, Threaded

Vortex Crossfire II 2-7x32

None (Scoped Model)

11.25 - 15"

Matte Blued

37.25"

7.5

DETAILS

#27981

7.62mm NATO (.308 WIN)

18.5"

Med. Bull, Fluted, Threaded

Vortex Crossfire II 2-7x32

None (Scoped Model)

11.25 - 15

Matte Blued

37.75

DETAILS

MVP FLEX Rifle

#27746

5.56mm NATO (.223 REM)

18.5"

Medium Bull, Threaded, Flash Suppressor

N/A

Picatinny Rail

11" - 14.5"

Matte Blued

FLEX 6-Pos Adjustable Synthetic (Black)

37"

DETAILS

#27977

5.56mm NATO (.223 REM)

18.5"

Med. Bull, Fluted, Threaded

N/A

Picatinny Rail

11.25 - 15"

Matte Blued

35.25"

DETAILS

#27978

7.62mm NATO (.308 WIN)

18.5"

Med. Bull, Fluted, Threaded

N/A

Picatinny Rail

11.25 - 15

Matte Blued

36.25

7.5

DETAILS

#27979

5.56mm NATO (.223 REM)

18.5"

Med. Bull, Fluted, Threaded

N/A

Picatinny Rail

13 - 15.37"

Matte Blued

38.5"

DETAILS

500 Tactical – JIC FLEX

#57340

: 12	Barrel Finish: Matte Blued
Capacity: 6	Stock Finish: FLEX Pistol Grip (Black)
Barrel Length: 18.5"	Length: 28.125"
Barrel Type:	Weight: 5.5
: Cylinder Bore	Sights: Bead
LOP: Pistol Grip

FLEX 500 All-Purpose

#50121

: 12	Barrel Finish: Matte Blued
Capacity: 6	Stock Finish: Synthetic (Black)
Barrel Length: 28"	Length: 48.25"
Barrel Type: Vent Rib	Weight: 7.5
: Accu-Set	Sights: Twin Bead
LOP: 14.25"

FLEX 500 Combo Deer/Security

#55131

: 12	Barrel Finish: Matte Blued
Capacity: 6	Stock Finish: FLEX 4-Pos Hunting (Mossy Oak Break Up Infinity/FLEX Pistol Grip (Black)
Barrel Length: 24" & 18.5"	Length: 44.5"
Barrel Type:	Weight: 7.75
: Fully-Rifled Bore/Cylinder Bore	Sights: ISB/Bead
LOP: 12 3/4" - 14 5/8"

FLEX 500 Combo Field/Security

#54320

: 20	Barrel Finish: Matte Blued
Capacity: 6	Stock Finish:
Barrel Length: 18.5" & 26"	Length: 31/46.25
Barrel Type: Vent Rib (26")	Weight: 5.75/7
: Cyl Bore/Accu Set	Sights: Bead/Fiber Optic Front
LOP: N/A ; 14.25

FLEX 500 Combo Turkey/Security

#55114

: 12	Barrel Finish: OD Green
Capacity: 6	Stock Finish: FLEX Synthetic (Mossy Oak Break Up Infinity/FLEX Pistol Grip (Black)
Barrel Length: 24"	Length: 44.25"
Barrel Type: Vent Rib & 18.5"	Weight: 6.75
: Xfactor Ptd/Cylinder Bore	Sights: Adj FO/Bead
LOP: 14.25"

FLEX 500 Combo Waterfowl/Security

#55117

: 12	Barrel Finish: Tan
Capacity: 6	Stock Finish: FLEX Synthetic (Realtree Advantage Max-4/FLEX Pistol Grip (Black)
Barrel Length: 28"	Length: 48.25"
Barrel Type: Vent Rib & 18.5"	Weight: 7.5
: Accu-Set/Cylinder Bore	Sights: FO Front/Bead
LOP: 14.25"

FLEX 500 Hunting

#50124

: 12	Barrel Finish: Tan
Capacity: 6	Stock Finish: FLEX, Synthetic (Realtree Advantage Max-4)
Barrel Length: 28"	Length: 48.25"
Barrel Type: Vent Rib	Weight: 7.5
: Accu-Set	Sights: Adj FO/FO Front
LOP: 14.25"

FLEX 500 Tactical

#50673

: 12	Barrel Finish: Matte Blued
Capacity: 6	Stock Finish: Synthetic (Black)
Barrel Length: 18.5"	Length: 31"
Barrel Type: Stand-off/Breacher	Weight: 5.75
: Cylinder Bore	Sights: White Dot
LOP: Pistol Grip

FLEX 590 Tactical

#51672

: 12	Barrel Finish: Matte Blued
Capacity: 9	Stock Finish: FLEX 6-Pos Adjustable Synthetic (Black)
Barrel Length: 20"	Length: 41"
Barrel Type:	Weight: 7
: Cylinder Bore	Sights: Bead
LOP: 11" - 14.5"

Mossberg International FLEX-22 Youth Rifle

#37063

: .22 LR	Barrel Finish: Blued
Capacity: 11	Stock Finish: FLEX, Synthetic Compact (Black)
Barrel Length: 18"	Length: 36.25"
Barrel Type:	Weight: 5
: N/A	Sights: Adjustable Fiber Optic
LOP: 13.25"

MVP FLEX – Vortex Scoped Combos

#27980

: 5.56mm NATO (.223 REM)	Barrel Finish: Matte Blued
Capacity: 11	Stock Finish:
Barrel Length: 18.5"	Length: 37.25"
Barrel Type: Med. Bull, Fluted, Threaded	Weight: 7.5
: Vortex Crossfire II 2-7x32	Sights: None (Scoped Model)
LOP: 11.25 - 15"

#27981

: 7.62mm NATO (.308 WIN)	Barrel Finish: Matte Blued
Capacity: 11	Stock Finish:
Barrel Length: 18.5"	Length: 37.75
Barrel Type: Med. Bull, Fluted, Threaded	Weight: 8
: Vortex Crossfire II 2-7x32	Sights: None (Scoped Model)
LOP: 11.25 - 15

MVP FLEX Rifle

#27746

: 5.56mm NATO (.223 REM)	Barrel Finish: Matte Blued
Capacity: 11	Stock Finish: FLEX 6-Pos Adjustable Synthetic (Black)
Barrel Length: 18.5"	Length: 37"
Barrel Type: Medium Bull, Threaded, Flash Suppressor	Weight: 7
: N/A	Sights: Picatinny Rail
LOP: 11" - 14.5"

#27977

: 5.56mm NATO (.223 REM)	Barrel Finish: Matte Blued
Capacity: 11	Stock Finish:
Barrel Length: 18.5"	Length: 35.25"
Barrel Type: Med. Bull, Fluted, Threaded	Weight: 7
: N/A	Sights: Picatinny Rail
LOP: 11.25 - 15"

#27978

: 7.62mm NATO (.308 WIN)	Barrel Finish: Matte Blued
Capacity: 11	Stock Finish:
Barrel Length: 18.5"	Length: 36.25
Barrel Type: Med. Bull, Fluted, Threaded	Weight: 7.5
: N/A	Sights: Picatinny Rail
LOP: 11.25 - 15

#27979

: 5.56mm NATO (.223 REM)	Barrel Finish: Matte Blued
Capacity: 11	Stock Finish:
Barrel Length: 18.5"	Length: 38.5"
Barrel Type: Med. Bull, Fluted, Threaded	Weight: 7
: N/A	Sights: Picatinny Rail
LOP: 13 - 15.37"

Extras

Article

Missing Targets? Check, and FLEX, Your Gunfit

As a former waterfowl guide, and a firearms instructor, I am often asked for wingshooting tips, and last year, I was honored with a request…

» View

Video

How to Install The FLEX Stock Adapter

Hello, I'm Thomas Lynch with O.F. Mossberg & Sons. I'm a Senior Engineer here at Mossberg. Today, I'm going talk to you about how to…

» View

Support

U.S. Customer Service (within all 50 states)

service@mossberg.com
(800) 363-3555

U.S. Customers - Should your firearm or any component of your firearm require service, kindly ship the entire firearm (not just components) to our Product Service Center postage paid, via your chosen carrier. We do not accept C.O.D. shipments.
U.S. Shipping Instructions »

Canada Customer Service

servicecanada@mossberg.com

Canadian Customers - Should your firearm or any component of your firearm require service, kindly contact your nearest Warranty & Service Center to schedule for service.
Canadian Warranty & Service Centers »

For Vortex Scope Warranties in Canada please contact :

Vortex Canada
Phone 866-343-0054
E-mail : info@vortexcanada.net
Address : 45 Airpark Place Unit 5 Guelph, ON N1L 1B2
https://www.vortexcanada.net/en/vip-warranty/

Owner's Manuals

Owner's Manuals are available online.
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Please request one by calling (800) 363-3555, or complete the Owner’s Manual Request Form »