UPC 656813108084 from 54 retailers

  • Magazines
  • 9mm
  • Warne
Shipping:

Warne 3306 Magazine Extension Black, +3 (9mm Luger), +4 (40S&W), for

Price History
Warne Magazine Ext,S&W M&P 9/40 +3/9mm2/40 Blk
Shipping $15 Free Shipping > $500
$26.99/ct $26.99 BuyAGun ★★★★★ (3)
WARNE MAG EXT S&W M&P 9/40 +3/2 BLK
Shipping $20
$31.49/ct $31.49 Custom Creatives Group ★★★★★ (24)

UPC 656813108084 Price Graph

  • Today's low of $26.99/mag is cheaper than 87% of daily lows in the last 180 days.
  • Today's average of $34.82/mag is cheaper than 81% of daily averages in the last 180 days.
  • The low peaked at $32.19/mag on June 4, 2026 and bottomed at $26.99/mag on October 23, 2026.

WARNE MAG EXT S&W M&P 9/40 +3/2 BLK
$32.19/ct $32.19 MCM Tactical ★★★★★ (60)
Warne 3306 Magazine Extension Black, +3 (9mm Luger), +4 (40S&W), for S&W M&P 9/40
Shipping $10 Free Shipping > $100
$34.99/ct $34.99 Conkey's Outdoors ★★★★★ (175)
WARNE MAG EXT S&W M&P 9/40 +3/2 BLK
Shipping $10
$34.99/ct $34.99 AZ Arms Depot ★★★★★ (229)
Warne Magazine Extension S&W M&P 9/40 +3/+2 Black
Shipping $10
$34.99/ct $34.99 Alexander's Store ★★★★★ (1,532)
Warne 3306 Magazine Extension Black, +3 (9mm Luger), +4 (40S&W), for S&W M&P 9/40
Shipping $11
$34.99/ct $34.99 Underground Tactical
Warne 3306 Magazine Extension Black, +3 (9mm Luger), +4 (40S&W), for S&W M&P 9/40
Shipping $11
$34.99/ct $34.99 Selway Armory ★★★★★ (186)
Warne 3306 Magazine Extension Black, +3 (9mm Luger), +4 (40S&W), for S&W M&P 9/40
Shipping $13 Free Shipping > $500
$34.99/ct $34.99 Axolotl Arms ★★★★★ (126)
WARNE MAG EXT S&W M&P 9/40 +3/2 BLK
Shipping $14 Free Shipping > $500 CC Fee 3%
$34.99/ct $34.99 Minutemen Defense ★★★★★ (54)

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WARNE MAG EXT S&W M&P 9/40 +3/2 BLK
Shipping $15 Free Shipping > $500
$34.99/ct $34.99 Kinetic Armory ★★★★★ (3)
Warne 3306 Magazine Extension Black, +3 (9mm Luger), +4 (40S&W), for S&W M&P 9/40
Shipping $15 Free Shipping > $149
$34.99/ct $34.99 Extreme Products ★★★★★ (83)
WARNE MAG EXT S&W M&P 9/40 +3/2 BLK
Shipping $15 Free Shipping > $500
$34.99/ct $34.99 Hollow Point Arms ★★★★★ (8)
WAR MAG EXTEN S&W M&P 9/40 RD3
Shipping $15 Free Shipping > $500
$34.99/ct $34.99 Garrison's Guns ★★★★★ (21)
Warne 3306 Magazine Extension Black, +3 (9mm Luger), +4 (40S&W), for S&W M&P 9/40
Shipping $18
$34.99/ct $34.99 Sharp's Shooting Supply ★★★★★ (34)
WARNE MAG EXT S&W M&P 9/40 +3/2 BLK
Shipping $19 Free Shipping > $750
$34.99/ct $34.99 Riddle Firearms
Warne 3306 Magazine Extension Black, +3 (9mm Luger), +4 (40S&W), for S&W M&P 9/40
Shipping $20
$34.99/ct $34.99 JB Armament ★★★★★ (126)
Warne 3306 Magazine Extension Black, +3 (9mm Luger), +4 (40S&W), for S&W M&P 9/40
Shipping $20
$34.99/ct $34.99 Down Range Firearms ★★★★★ (8)
WARNE MAG EXT S&W M&P 9/40 +3/2 BLK
Shipping $20 Free Shipping > $1,000
$34.99/ct $34.99 Life2A ★★★★★ (3)
WARNE MAG EXT S&W M&P 9/40 +3/2 BLK
Shipping $20 Free Shipping > $1,000
$34.99/ct $34.99 Dave's Guns ★★★★★ (28)
WAR MAG EXTEN S&W M&P 9/40 RD3
Shipping $25 $25 Off Orders $200+ Code LOCKNLOAD25
$34.99/ct $34.99 Scottsodg.com
Warne 3306 Magazine Extension Black, +3 (9mm Luger), +4 (40S&W), for S&W M&P 9/40
$5 Off Code CALIBERKING
$34.99/ct $34.99 Gun Place ★★★★★ (206)
WARNE MAG EXT S&W M&P 9/40 +3/2 BLK
Free Shipping > $250 $15 Off Orders $75+ Code CALIBERKING
$34.99/ct $34.99 Brickhouse Firearms
Warne 3306 Magazine Extension +3 for 9mm Luger +4 for 40S&W S&W M&P 9/40
Free Shipping > $500
$34.99/ct $34.99 Shooting Surplus ★★★★★ (193)
WARNE MAG EXT S&W M&P 9/40 +3/2 BLK
Free Shipping > $1,250
$34.99/ct $34.99 Nadir Solutions ★★★★★ (18)
Warne 3306 Magazine Extension Black, +3 (9mm Luger), +4 (40S&W), for S&W M&P 9/40
Free Shipping > $700
$34.99/ct $34.99 Freedom Firearms ★★★★★ (2)
WARNE MAG EXT S&W M&P 9/40 +3/2 BLK
Free Shipping > $500
$34.99/ct $34.99 Timber Hole Outdoors ★★★★★ (6)
Warne 3306 Magazine Extension Black, +3 (9mm Luger), +4 (40S&W), for S&W M&P 9/40
Free Shipping > $900 CC Fee 3%
$34.99/ct $34.99 Armed in Michigan ★★★★★ (714)
Warne 3306 Magazine Extension Black, +3 (9mm Luger), +4 (40S&W), for S&W M&P 9/40
$34.99/ct $34.99 Don's Weaponry ★★★★★ (252)
Warne 3306 Magazine Extension Black, +3 (9mm Luger), +4 (40S&W), for S&W M&P 9/40
$34.99/ct $34.99 CLB Guns ★★★★★ (45)
Warne 3306 Magazine Extension Black, +3 (9mm Luger), +4 (40S&W), for S&W M&P 9/40
$34.99/ct $34.99 Highland Arms ★★★★★ (49)
WARNE MAG EXT S&W M&P 9/40 +3/2 BLK
$34.99/ct $34.99 Pickett's Mill Armory ★★★★★ (26)
WARNE MAG EXT S&W M&P 9/40 +3/2 BLK
$34.99/ct $34.99 Utah Fast ★★★★★ (101)
WARNE MAG EXT S&W M&P 9/40 +3/2 BLK
$34.99/ct $34.99 Get Guns N Ammo
WARNE MAG EXT S&W M&P 9/40 +3/2 BLK
$34.99/ct $34.99 Patriotic Firearms
WARNE MAG EXT S&W M&P 9/40 +3/2 BLK
$34.99/ct $34.99 Pathfinder Militaria ★★★★★ (106)
WARNE MAG EXT S&W M&P 9/40 +3/2 BLK
$34.99/ct $34.99 WTW Arms ★★★★★ (68)
Warne 3306 Magazine Extension Black, +3 (9mm Luger), +4 (40S&W), for S&W M&P 9/40
$34.99/ct $34.99 Bulletproof Outfitters ★★★★★ (133)
WAR MAG EXTEN S&W M&P 9/40 RD3
$34.99/ct $34.99 Coastal Firearms
WARNE MAG EXT S&W M&P 9/40 +3/2 BLK
$34.99/ct $34.99 Redsand Tactical
WARNE MAG EXT S&W M&P 9/40 +3/2 BLK
$34.99/ct $34.99 EK Tactical ★★★★★ (10)
Warne 3306 Magazine Extension Black, +3 (9mm Luger), +4 (40S&W), for S&W M&P 9/40
$34.99/ct $34.99 2 If By Sea Tactical ★★★★★ (135)
Warne 3306 Magazine Extension for S&W M&P 9/40
$34.99/ct $34.99 Georgia Guns & Ammo ★★★★★ (2)
Warne 3306 Magazine Extension Black, +3 (9mm Luger), +4 (40S&W), for S&W M&P 9/40
$34.99/ct $34.99 Black Bayou Armory ★★★★★ (83)
Warne 3306 Magazine Extension Black, +3 (9mm Luger), +4 (40S&W), for S&W M&P 9/40
$34.99/ct $34.99 Allied Arms ★★★★★ (310)
Warne 3306 Magazine Extension Black, +3 (9mm Luger), +4 (40S&W), for S&W M&P 9/40
$34.99/ct $34.99 Tungsten Creek Tactical
WARNE MAG EXT S&W M&P 9/40 +3/2 BLK
$34.99/ct $34.99 Big Bee Bee ★★★★★ (11)
WARNE MAG EXT S&W M&P 9/40 +3/2 BLK
$34.99/ct $34.99 Ecommerce Arms
Warne 3306 Magazine Extension Black, +3 (9mm Luger), +4 (40S&W), for S&W M&P 9/40
$34.99/ct $34.99 Shiner Tactical ★★★★★ (6)
WARNE MAG EXT S&W M&P 9/40 +3/2 BLK
$34.99/ct $34.99 Vital Defense ★★★★★ (14)
WAR MAG EXTEN S&W M&P 9/40 RD3
$34.99/ct $34.99 Firearms Express
Warne 3306 Magazine Extension Black, +3 (9mm Luger), +4 (40S&W), for S&W M&P 9/40
$34.99/ct $34.99 Birmingham Hill Armory ★★★★★ (16)
Warne 3306 Magazine Extension Black, +3 (9mm Luger), +4 (40S&W), for S&W M&P 9/40
CC Fee 3%
$34.99/ct $34.99 Cornerstone Arms ★★★★★ (373)
Warne S&W M&P 9/40 +3/2 Magazine Extension, Black - MESW-3/2BLK
$39.99/ct $39.99 Palmetto State Armory ★★★★★ (1,164)

UPC 656813108084 Price Graph

  • Today's low of $26.99/mag is cheaper than 87% of daily lows in the last 180 days.
  • Today's average of $34.82/mag is cheaper than 81% of daily averages in the last 180 days.
  • The low peaked at $32.19/mag on June 4, 2026 and bottomed at $26.99/mag on October 23, 2026.

Daily Deals Email

Gun and ammo deals at their 90-day low.

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