SIG SAUER M400 SENTRY PACKAGE - 5.56 NATO 30+1 16" Threaded Barrel,

UPC 798681716128 from 74 retailers

  • 5.56x45mm
  • Sig Sauer
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SIG SAUER M400 SENTRY PACKAGE - 5.56 NATO 30+1 16" Threaded Barrel,

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SIGM400 SDI, 5.56 NATO, RIFLE, 16IN, X RIFLE, BLK, SEMI, TELE STOCK, (1) 30RD MAG, ROMEO5 GEN II, FOXTROT-MSR FULL SIZE
Shipping $20
Email for Price DK Gun & Dog ★★★★★ (56)
SIG Sauer M400 SDI Rifle, 5.56 NATO, 16-Inch Barrel, 30-Round
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$1,749.99 Deerford Defense

UPC 798681716128 Price Graph

  • Today's low of $1,461.16 is cheaper than 91% of daily lows in the last 180 days.
  • Today's average of $1,754.78 is cheaper than 73% of daily averages in the last 180 days.
  • The low peaked at $1,799.99 on June 29, 2026 and bottomed at $1,450.76 on September 26, 2026.

SIG SAUER M400 SENTRY 5.56 RIFLE 16" BLACK ROMEO5 G2, FOXTROT MSR F.S. 1-30RD MAG
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$1,749.99 Life2A ★★★★★ (3)
Sig Sauer M400 SDI Sentry 5.56 NATO 16 in 30rd ROMEO5
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$1,749.99 Axolotl Arms ★★★★★ (126)
SIG SAUER M400 SENTRY 5.56 RIFLE 16" BLACK ROMEO5 G2, FOXTROT MSR F.S. 1-30RD MAG
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$1,749.99 Cummings Family Firearms ★★★★★ (52)
Sig Sauer M400-Sentry Semi Automatic Rifle 5.56x45mm NATO 16" Matte Threaded Barrel Black Frame Black Pistol Grip With Romeo5 Red Dot
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$1,749.99 Midway USA ★★★★★ (119)
M400 SDI SENTRY COMBO 5.56 16" MLOK BLACK 30RD
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$1,749.99 Timber Hole Outdoors ★★★★★ (6)
SIG SAUER M400 SENTRY 5.56 RIFLE 16" BLACK ROMEO5 G2, FOXTROT MSR F.S. 1-30RD MAG
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$1,749.99 Kinetic Armory ★★★★★ (3)
SIG M400 SENTRY RFL 5.56 30RD
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$1,749.99 Riddle Firearms
Sig Sauer M400 SDI AR 16" 223 Remington 556NATO 30 Rounds - Black
.223 Remington
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$1,749.99 Skid Tactical ★★★★★ (63)

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SIG SAUER M400 SENTRY 5.56 RIFLE 16" BLACK ROMEO5 G2, FOXTROT MSR F.S. 1-30RD MAG
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$1,749.99 Garrison's Guns ★★★★★ (21)
SIG SAUER M400 SENTRY 5.56MM 16" ROMEO5
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$1,749.99 Nadir Solutions ★★★★★ (18)
SIG SAUER M400 SENTRY 5.56MM 16" ROMEO5
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$1,749.99 Conkey's Outdoors ★★★★★ (175)
SIG SAUER M400 SENTRY 5.56MM 16" ROMEO5
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$1,749.99 Safe Haven Defense
SIG SAUER M400 SENTRY 5.56 NATO 16" ROMEO5 Combo
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$1,749.99 Brickhouse Firearms
SIG SAUER M400 SENTRY 5.56MM 16" ROMEO5
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$1,749.99 Dave's Guns ★★★★★ (28)
Sig Sauer M400 Sentry Sdi 5.56 Nato 16 inch 30 Round Blued Black
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$1,749.99 Shooting Surplus ★★★★★ (193)
SIG M400 SDI X 5.56 NATO 16" - 30RD TELE STOCK W/OPTIC COMBO
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$1,749.99 Timberlake Firearms ★★★★★ (11)
SIG RM400SDI16BR5FX M400 SDI 556 16 BLK TELE
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$1,749.99 Canoe Creek Armory ★★★★★ (17)
Sig Sauer M400 Sentry Package Semi-Auto Rifle RM400SDI16BR5FX, 5.56 NATO, 16", 6 Position SL Stock, Foxtrot MSR Light, Romeo5 Red Dot, 30 Rds FREE SHIPPING
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$1,749.99 Able Ammo ★★★★★ (397)
SIG SAUER M400 SENTRY 5.56 RIFLE 16" BLACK ROMEO5 G2, FOXTROT MSR F.S. 1-30RD MAG
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$1,749.99 Caliber Exchange ★★★★★ (1)
Sig M400 Sdi X 5.56 NATO 16" - 30rd Tele Stock w/Optic Combo
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$1,749.99 Hollow Point Arms ★★★★★ (8)
SIG M400 SDI 556NATO 16" BLK ROMEO5
Free Shipping CC Fee 3%
$1,749.99 Bunker Hill Ballistics ★★★★★ (9)
SIG RM400SDI16BR5FX M400 SDI 556 16 BLK TELE
Free Shipping CC Fee 3% $10 Off Code CALIBERKING
$1,749.99 Armed in Michigan ★★★★★ (714)
SIG SAUER M400 SENTRY 5.56MM 16" ROMEO5
Free Shipping CC Fee 3%
$1,749.99 Minutemen Defense ★★★★★ (54)
Sig Sauer M400 SDI Sentry 5.56 NATO 16in Rifle with ROMEO5 & Light
Shipping $10
$1,749.99 Alexander's Store ★★★★★ (1,532)
SIG RM400SDI16BR5FX M400 SDI 556 16 BLK
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$1,749.99 Selway Armory ★★★★★ (186)
SIG SAUER M400 SENTRY 5.56 RIFLE 16" BLACK ROMEO5 G2, FOXTROT MSR F.S. 1-30RD MAG
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$1,749.99 Extreme Products ★★★★★ (83)
SIG SAUER M400 SENTRY 5.56MM 16" ROMEO5
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$1,749.99 AZ Arms Depot ★★★★★ (229)
SIG SAUER M400 SENTRY 5.56 RIFLE 16" BLACK ROMEO5 G2, FOXTROT MSR F.S. 1-30RD MAG
Shipping $16
$1,749.99 Riflenetics ★★★★★ (65)
Sig Sauer RM400SDI16BR5FX M400 SDI 556 Black Tele
6mm BR
Shipping $18
$1,749.99 Classic Firearms ★★★★★ (2,454)
SIG RM400SDI16BR5FX M400 SDI 556 16 BLK TELE
Shipping $18
$1,749.99 Sharp's Shooting Supply ★★★★★ (34)
SIG SAUER M400 SENTRY 5.56MM 16" ROMEO5
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$1,749.99 Blackbox Ballistics ★★★★★ (2)
SIG SAUER M400 SENTRY 5.56 RIFLE 16" BLACK ROMEO5 G2, FOXTROT MSR F.S. 1-30RD MAG
Shipping $20
$1,749.99 Custom Creatives Group ★★★★★ (24)
SIG M400 SDI 556NATO 16" BLK ROMEO5
Shipping $20
$1,749.99 Down Range Firearms ★★★★★ (8)
SIG RM400SDI16BR5FX M400 SDI 556 16 BLK TELE
Shipping $20
$1,749.99 JB Armament ★★★★★ (126)
SIG SAUER M400 SENTRY 5.56 RIFLE 16" BLACK ROMEO5 G2, FOXTROT MSR F.S. 1-30RD MAG
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$1,749.99 Scottsodg.com
SIG M400 SDI 5.56mm 16" Black Tactical Rifle 798681716128
$5 Off Code CALIBERKING
$1,749.99 Gun Place ★★★★★ (206)
Sig Sauer M400 Sentry 798681716128 5.56 mm NATO
$1,749.99 C-ME Firearms
M400-SENTRY 5.56X45 NATO 16''BBL (1)30RD BLACK W/ROMEO5 GENII
$1,749.99 Allied Arms ★★★★★ (310)
SIGM400 SDI, 5.56 NATO, RIFLE, 16IN, X RIFLE, BLK, SEMI, TELE STOCK, (1) 30RD MAG, ROMEO5 GEN II, FOXTROT-MSR FULL SIZE
Add to Cart for Price Gun Wise
Sig Sauer M400-SDI SENTRY Rifle with ROMEO5 & FOXTROT-MSR Light, 5.56 NATO, 16″ Barrel, 30+1 Rounds, Black – RM400-SDI-16B-R5FX
$1,749.99 Black Bayou Armory ★★★★★ (83)
SIG SAUER M400 SENTRY 5.56 Rifle with ROMEO5 G2
$1,749.99 Good 4 Guns ★★★★★ (276)
SIG SAUER M400 SENTRY 5.56 RIFLE 16" BLACK ROMEO5 G2, FOXTROT MSR F.S. 1-30RD MAG
$1,749.99 Pickett's Mill Armory ★★★★★ (26)
SIG M400 SDI X 5.56 NATO 16" - 30RD TELE STOCK W/OPTIC COMBO
$1,749.99 Pathfinder Militaria ★★★★★ (106)
SIG SAUER M400 SENTRY 5.56 RIFLE 16" BLACK ROMEO5 G2, FOXTROT MSR F.S. 1-30RD MAG
$1,749.99 Big Bee Bee ★★★★★ (11)
SIG SAUER M400 SENTRY 5.56MM 16" ROMEO5
$1,749.99 Patriotic Firearms
SIG SAUER M400 SENTRY 5.56MM 16" ROMEO5
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Sig Sauer M400 SDI 5.56 NATO Semi-Auto Sentry Rifle Package
$1,749.99 Palmetto State Armory ★★★★★ (1,164)
Sig M400 Sdi 556NATO 16" BLK ROMEO5
$1,749.99 Shiner Tactical ★★★★★ (6)
SIG SAUER M400 SENTRY 5.56 RIFLE 16" BLACK ROMEO5 G2, FOXTROT MSR F.S. 1-30RD MAG
$1,749.99 WTW Arms ★★★★★ (68)
SIG SAUER M400 SENTRY 5.56MM 16" ROMEO5
$1,749.99 Armored Boar Gunworks ★★★★★ (53)
Sig Sauer M400-SDI Sentry Rifle 5.56 NATO 30rd Magazine 16" Barrel Black with Romeo5 Gen II Foxtrot
$1,749.99 MCM Tactical ★★★★★ (60)
SIG RM400SDI16BR5FX M400 SDI 556 16 BLK TELE
$1,749.99 Highland Arms ★★★★★ (49)
SIG SAUER M400 SENTRY 5.56MM 16" ROMEO5
$1,749.99 Precision Gunworks
SIG RM400SDI16BR5FX M400 SDI 556 16 BLK TELE
$1,749.99 CLB Guns ★★★★★ (45)
Sig Sauer M400 556 Nato W/ Romeo5 Gen II & Foxtrot MSR SDI Sentry Rifle Package RM400-SDI-16B-R5FX
$1,749.99 GunPrime ★★★★★ (2,495)
Sig Sauer M400-SDI Sentry Rifle 5.56 NATO 30rd Magazine 16" Barrel Black with Romeo5 Gen II Foxtrot
$1,749.99 EK Tactical ★★★★★ (10)
SIG SAUER M400 SENTRY 5.56 RIFLE 16" BLACK ROMEO5 G2, FOXTROT MSR F.S. 1-30RD MAG
$1,749.99 Utah Fast ★★★★★ (101)
M400-SENTRY 5.56X45 NATO 16''BBL (1)30RD BLACK W/ROMEO5 GENII
$1,749.99 Birmingham Hill Armory ★★★★★ (16)
SIG M400 SDI 556NATO 16" BLK ROMEO5
$1,749.99 Underground Tactical
SIG SAUER M400 SENTRY 5.56 RIFLE 16" BLACK ROMEO5 G2, FOXTROT MSR F.S. 1-30RD MAG
CC Fee 3%
$1,749.99 Cornerstone Arms ★★★★★ (373)
SIG M400 SDI X 5.56 NATO 16" - 30RD TELE STOCK W/OPTIC COMBO
CC Fee 6%
$1,749.99 All Things Firearm ★★★★★ (3)
Sig Sauer M400 SDI SENTRY COMBO 5.56 16" MLOK BLACK 30RD
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$1,751.99 BuyAGun ★★★★★ (3)
SIG M400 SENTRY RFL 5.56 30RD
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$1,761.50 Lightning Strike Arms ★★★★★ (32)
SIG SAUER M400 SENTRY 5.56MM 16" ROMEO5
$1,762.99 2 If By Sea Tactical ★★★★★ (135)
SIG SAUER M400 SENTRY PACKAGE - 5.56 NATO 30+1 16" Threaded Barrel, Black Anodized Picatinny Rail Alloy Steel Receiver, M-LOK Handguard, 6 Pos Magpul SL Black Stock, Reduced Angle Grip, Foxtrot-MSR Full Size, Romeo5 Gen II Compact Red Dot Sight The M400 Sentry offers a r...
Shipping $20
$1,775.99 Guns.com ★★★★★ (38,455)
SIG SAUER M400 SENTRY 5.56MM 16" ROMEO5
$1,777.65 Redsand Tactical
SIG SAUER M400 SENTRY 5.56MM 16" ROMEO5
$1,780.80 Firearms Express
Sig Sauer M400 Sentry 798681716128 5.56 mm NATO
$1,792.99 Denver Bullets ★★★★★ (95)
SIG SAUER M400 SENTRY 5.56 RIFLE 16" BLACK ROMEO5 G2, FOXTROT MSR F.S. 1-30RD MAG
$1,797.99 Coastal Firearms
SIG RM400SDI16BR5FX M400 SDI 556 16 BLK
$1,868.60 Tungsten Creek Tactical
SIG SAUER M400 SENTRY 5.56MM 16" ROMEO5
$1,902.36 Bulletproof Outfitters ★★★★★ (133)
SIG SAUER M400 SENTRY 5.56 RIFLE 16" BLACK ROMEO5 G2, FOXTROT MSR F.S. 1-30RD MAG
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$1,915.34 Freedom Firearms ★★★★★ (2)

UPC 798681716128 Price Graph

  • Today's low of $1,461.16 is cheaper than 91% of daily lows in the last 180 days.
  • Today's average of $1,754.78 is cheaper than 73% of daily averages in the last 180 days.
  • The low peaked at $1,799.99 on June 29, 2026 and bottomed at $1,450.76 on September 26, 2026.

Daily Deals Email

Gun and ammo deals at their 90-day low.

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