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SIG SAUER M400-SDI X Rifle, 5.56x45mm NATO, 16 inch Barrel Info, Compatible Parts & Accessories

SIG SAUER M400-SDI X Rifle, 5.56x45mm NATO, 16 inch Barrel, 30 Round Magazine, Black, RM400SDI16BFDE-FRRMPG
SIG SAUER M400-SDI X Rifle, 5.56x45mm NATO, 16 inch Barrel, 30 Round Magazine, Black, RM400SDI16BFDE-FRRMPG
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SIG SAUER M400-SDI X Rifle, 5.56x45mm NATO, 16 inch Barrel, 30 Round Magazine, Black, RM400SDI16BFDE-FRRMPG

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Product Info for SIG SAUER M400-SDI X Rifle, 5.56x45mm NATO, 16 inch Barrel

SIG RM400SDI16BFDE M400 SDI 556 16 FDE TELEimage

Specifications for SIG SAUER M400-SDI X Rifle, 5.56x45mm NATO, 16 inch Barrel:

Manufacturer: SIG SAUER
Gun Make: SIG Sauer
Gun Model: Sig Sauer M400-SDI XSERIES
Gun Type: Rifle
Caliber: 5.56x45mm NATO
Barrel Length: 16 in
Sight Configuration: None
Safety Type: Safety Lever
Barrel Twist Rate: 1-7
Muzzle Device: SIG Flash Hider-Compensator
Stock Type: Magpul MOE SL
Magazine Capacity: 30 Round
Color: Black

Ammunition

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Best Rated
PMC Ammunition X-TAC Light Armor Piercing 5.56x45mm NATO 62 Grain Brass Cased Centerfire Rifle Ammunition
PMC Ammunition X-TAC Light Armor Piercing 5.56x45mm NATO 62 Grain Brass Cased Centerfire Rifle Ammunition
(104)
As Low As (Save Up to 25%)
$11.29
$0.56 - $0.67/Round
See all 2 models
15% Coupon
Hornady Frontier 5.56x45mm NATO 75 grain Boat Tail Hollow Point (BTHP) Brass Centerfire Rifle Ammunition
Hornady Frontier 5.56x45mm NATO 75 grain Boat Tail Hollow Point (BTHP) Brass Centerfire Rifle Ammunition
(27)
As Low As (Save Up to 33%)
$14.49
$0.72 - $1.04/Round
See all 2 models
15% Coupon
Hornady Frontier 5.56x45mm NATO 55 Grain Full Metal Jacket Brass Rifle Ammunition
Hornady Frontier 5.56x45mm NATO 55 Grain Full Metal Jacket Brass Rifle Ammunition
(41)
As Low As (Save 21%)
$12.49
$0.62 - $0.63/Round
See all 3 models
Best Rated
Hornady BLACK 5.56x45mm NATO 62 grain Full Metal Jacket Brass Cased Centerfire Rifle Ammo, 20 Rounds, 81263
Hornady BLACK 5.56x45mm NATO 62 grain Full Metal Jacket Brass Cased Centerfire Rifle Ammo, 20 Rounds, 81263
(7)
List: $24.99 (Save 27%)
$18.19
$0.91/Round
Blazin' Deal
Aguila Ammunition 5.56x45mm NATO Ammo 55 Grain Full Metal Jacket Brass Cased Rifle Ammunition
Aguila Ammunition 5.56x45mm NATO Ammo 55 Grain Full Metal Jacket Brass Cased Rifle Ammunition
(7)
As Low As (Save Up to 33%)
$18.19
$0.44 - $0.61/Round
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PMC 556M55BP Battle Pack 5.56 NATO 62 Gr Light Armor Piercing LAP
PMC 556M55BP Battle Pack 5.56 NATO 62 Gr Light Armor Piercing LAP
List: $89.00 (Save 15%)
$75.59
$0.63/Round
Best Rated
Hornady Superformance 5.56x45mm NATO 75 grain Boat-Tail Hollow Point Match Brass Cased Centerfire Rifle Ammo, 20 Rounds, 81264
Hornady Superformance 5.56x45mm NATO 75 grain Boat-Tail Hollow Point Match Brass Cased Centerfire Rifle Ammo, 20 Rounds, 81264
(8)
List: $41.40 (Save $3.51)
$37.89
$1.89/Round
Magtech 5.56X45 M193 55 Grain Full Metal Jacket Brass Cased Rifle Ammo, 50 Rounds, 556A
Magtech 5.56X45 M193 55 Grain Full Metal Jacket Brass Cased Rifle Ammo, 50 Rounds, 556A
(1)
List: $32.49 (Save 20%)
$26.09
$0.52/Round
Best Rated
Barnes Vor-TxRifle Cartridges, 5.56x45mm NATO, TSX Boat Tail, 62 Grain, 20 - Rounds, *31190
Barnes Vor-TxRifle Cartridges, 5.56x45mm NATO, TSX Boat Tail, 62 Grain, 20 - Rounds, *31190
(10)
List: $39.99 (Save 20%)
$31.89
$1.59/Round
Fiocchi Range Dynamics 556 NATO 55 Grain FMJ Brass Cased Rifle Ammo, 50 Round, 556M193L
Fiocchi Range Dynamics 556 NATO 55 Grain FMJ Brass Cased Rifle Ammo, 50 Round, 556M193L
(2)
List: $34.99 (Save $3.20)
$31.79
$0.64/Round
Fort Scott Munitions 5.56 NATO Copper 62 Grain Centerfire Rifle Ammo, 20 Rounds, 556-062-SCV1
Fort Scott Munitions 5.56 NATO Copper 62 Grain Centerfire Rifle Ammo, 20 Rounds, 556-062-SCV1
(2)
List: $28.41 (Save 12%)
$24.89
$1.24/Round
PPU PPRM5561M 5.56X45 55 FMJBT RNGMSTR
PPU PPRM5561M 5.56X45 55 FMJBT RNGMSTR
List: $830.99 (Save 22%)
$644.99
$0.64/Round
Hornady Superfomance 5.56 Nato 55 Grain Copper Solid CX Brass Cased Centerfire Rifle Ammo, 20 Rounds, 812544
Hornady Superfomance 5.56 Nato 55 Grain Copper Solid CX Brass Cased Centerfire Rifle Ammo, 20 Rounds, 812544
(3)
List: $46.61 (Save $3.12)
$43.49
$2.17/Round
Barnes Precision MatchRifle Cartridges, 5.56x45mm NATO, Match Burner Open Tip Match Boat Tail, 69 Grain, 20 - Rounds, *30846
Barnes Precision MatchRifle Cartridges, 5.56x45mm NATO, Match Burner Open Tip Match Boat Tail, 69 Grain, 20 - Rounds, *30846
List: $39.99 (Save 20%)
$31.89
$1.59/Round
G9 Defense 5.56mm 54 Grain Barrier Blind Hollow Point Brass Cased Pistol Ammo, 20 Rounds, B-556-54A
G9 Defense 5.56mm 54 Grain Barrier Blind Hollow Point Brass Cased Pistol Ammo, 20 Rounds, B-556-54A
(2)
List: $38.99 (Save 10%)
$35.09
$1.75/Round
Fort Scott Munitions .5.56 NATO 70 Grain CNC Machined Copper Brass Rifle Ammo, 20 Rounds, 556-070-SCV
Fort Scott Munitions .5.56 NATO 70 Grain CNC Machined Copper Brass Rifle Ammo, 20 Rounds, 556-070-SCV
List: $28.71 (Save $2.12)
$26.59
$1.33/Round
Fort Scott Munitions, 5.56x45mm NATO, 55 grain, Copper Solid, Brass, Centerfire Rifle Ammo, 20, 556-055-SCV
Fort Scott Munitions, 5.56x45mm NATO, 55 grain, Copper Solid, Brass, Centerfire Rifle Ammo, 20, 556-055-SCV
List: $28.32 (Save 14%)
$24.49
$1.22/Round
Barnes Precision 5.56x45mm NATO 85 grain Burner Open Tip Match Boat Tail Centerfire Rifle Ammo, 20 Rounds, *30848
Barnes Precision 5.56x45mm NATO 85 grain Burner Open Tip Match Boat Tail Centerfire Rifle Ammo, 20 Rounds, *30848
(4)
List: $57.49 (Save 17%)
$47.49
$2.37/Round
PMC Ammunition X-Tac 5.56x45mm NATO 55 Grain Full Metal Jacket Rifle Ammo, Metal Box, 840 Rounds, 1102741
PMC Ammunition X-Tac 5.56x45mm NATO 55 Grain Full Metal Jacket Rifle Ammo, Metal Box, 840 Rounds, 1102741
List: $632.49 (Save $40.80)
$591.69
$0.70/Each
Atomic Ammunition Atomic Ammo 5.56x45 500 Rounds 62gr. Hornady Fmj Bulk-pack
Atomic Ammunition Atomic Ammo 5.56x45 500 Rounds 62gr. Hornady Fmj Bulk-pack
List: $629.99 (Save 10%)
$568.29
$1.14/Round
Best Rated
PMC Ammunition X-TAC, 5.56x45mm NATO, 55 grain, Full Metal Jacket, Brass, Centerfire Rifle Ammo, 20, 556X
PMC Ammunition X-TAC, 5.56x45mm NATO, 55 grain, Full Metal Jacket, Brass, Centerfire Rifle Ammo, 20, 556X
(63)
List: $15.99 (Save 31%)
$10.99
$0.55/Round
Armscor Precision Inc .223 Remington/5.56x45mm NATO Blank Brass Cased Rifle Ammo, 20 Rounds, 50172PH-20RD
Armscor Precision Inc .223 Remington/5.56x45mm NATO Blank Brass Cased Rifle Ammo, 20 Rounds, 50172PH-20RD
(1)
List: $12.99 (Save 12%)
$11.49
$0.57/Round
Veteran Ammo Defense 5.56x45mm NATO 62 Grain Hollow Point Centerfire Pistol Ammo, 20 Rounds, HMBX-556-24
Veteran Ammo Defense 5.56x45mm NATO 62 Grain Hollow Point Centerfire Pistol Ammo, 20 Rounds, HMBX-556-24
List: $49.99 (Save 24%)
$38.09
$1.90/Round
Best Rated
Hornady Frontier 5.56x45mm NATO 68 grain Boat-Tail Hollow Point Brass Cased Centerfire Rifle Ammo, 20 Rounds, FR310
Hornady Frontier 5.56x45mm NATO 68 grain Boat-Tail Hollow Point Brass Cased Centerfire Rifle Ammo, 20 Rounds, FR310
(14)
List: $19.60 (Save 21%)
$15.49
$0.77/Round
15% Coupon
Hornady BLACK 5.56x45mm NATO 75 Grain InterLock HD SBR Centerfire Rifle Ammunition
Hornady BLACK 5.56x45mm NATO 75 Grain InterLock HD SBR Centerfire Rifle Ammunition
(20)
As Low As (Save Up to 21%)
$28.99
$1.37 - $1.45/Round
See all 2 models
PPU 5.56x45mm NATO 0 grain Brass Cased Blank Ammo, 20 Rounds, PPB556
PPU 5.56x45mm NATO 0 grain Brass Cased Blank Ammo, 20 Rounds, PPB556
List: $22.49 (Save 32%)
$15.19
$0.76/Round
Veteran Ammo Defense 5.56x45mm NATO 62 Grain Full Metal Jacket Centerfire Pistol Ammo, 20 Rounds, HMBX-556-25
Veteran Ammo Defense 5.56x45mm NATO 62 Grain Full Metal Jacket Centerfire Pistol Ammo, 20 Rounds, HMBX-556-25
List: $49.99 (Save 23%)
$38.69
$1.93/Round
Best Rated
Winchester USA 5.56x45mm NATO 55 grain Ball (M193) Full Metal Jacket Brass Centerfire Rifle Ammunition
Winchester USA 5.56x45mm NATO 55 grain Ball (M193) Full Metal Jacket Brass Centerfire Rifle Ammunition
(147)
As Low As (Save Up to 52%)
$12.49
$0.59 - $0.63/Round
See all 7 models
15% Coupon
Hornady Frontier 5.56x45mm NATO 62 Grain Full Metal Jacket Centerfire Rifle Ammunition
Hornady Frontier 5.56x45mm NATO 62 Grain Full Metal Jacket Centerfire Rifle Ammunition
(2)
As Low As (Save Up to 21%)
$13.99
$0.70/Round
See all 2 models
Best Rated
Winchester USA 5.56x45mm NATO 62 grain Green Tip M855 Full Metal Jacket Boat Tail FMJBT Brass Centerfire Rifle Ammunition
Winchester USA 5.56x45mm NATO 62 grain Green Tip M855 Full Metal Jacket Boat Tail FMJBT Brass Centerfire Rifle Ammunition
(132)
As Low As (Save Up to 48%)
$13.09
$0.63 - $0.65/Round
See all 7 models
Freedom Munitions 5.56x45mm NATO 55 Grain Full Metal Jacket Brass Rifle Ammunition
Freedom Munitions 5.56x45mm NATO 55 Grain Full Metal Jacket Brass Rifle Ammunition
As Low As (Save 12%)
$29.39
$0.58 - $0.59/Round
See all 2 models
15% Coupon
Hornady Frontier 5.56x45mm NATO 55 Grain Hollow Point Centerfire Rifle Ammunition
Hornady Frontier 5.56x45mm NATO 55 Grain Hollow Point Centerfire Rifle Ammunition
(3)
As Low As (Save 21%)
$33.89
$0.68/Round
See all 2 models
First Breach 5.56 NATO 55 Grain Full Metal Jacket Boattail New C220 Brass Cased Rifle Ammo, 1000 Rounds, 50009
First Breach 5.56 NATO 55 Grain Full Metal Jacket Boattail New C220 Brass Cased Rifle Ammo, 1000 Rounds, 50009
(1)
List: $612.29 (Save $39.50)
$572.79
$0.57/Round
First Breach 5.56 NATO 55 Grain Full Metal Jacket Boattail New C220 Brass Cased Rifle Ammo, 20 Rounds, 556 55 loaded
First Breach 5.56 NATO 55 Grain Full Metal Jacket Boattail New C220 Brass Cased Rifle Ammo, 20 Rounds, 556 55 loaded
(1)
List: $19.99 (Save 33%)
$13.39
$0.67/Round
Best Rated
Barnes Vor-TxRifle Cartridges, 5.56x45mm NATO, TSX Boat Tail, 70 Grain, 20 - Rounds, *31191
Barnes Vor-TxRifle Cartridges, 5.56x45mm NATO, TSX Boat Tail, 70 Grain, 20 - Rounds, *31191
(14)
List: $40.99 (Save $1.20)
$39.79
$1.99/Round
Fiocchi Shooting Dynamics Rifle Ammo 5.56mm NATO 55 gr FMJ 3240 fps 1000/ct Case, 556M193LC
Fiocchi Shooting Dynamics Rifle Ammo 5.56mm NATO 55 gr FMJ 3240 fps 1000/ct Case, 556M193LC
List: $792.69 (Save $53.20)
$739.49
$0.74/Round
Winchester Lake City 5.56 MM M855 FMJ WIN 62 GR 50 Green Tip 50-20RD Box 1000 rds tot, WM855K Case
Winchester Lake City 5.56 MM M855 FMJ WIN 62 GR 50 Green Tip 50-20RD Box 1000 rds tot, WM855K Case
List: $815.69 (Save 10%)
$732.19
$0.73/Round
PMC Ammunition X-Tac Rifle Ammo 5.56x45mm 55 gr FMJBT 3120 fps 1000/Box, 5.56X Case
PMC Ammunition X-Tac Rifle Ammo 5.56x45mm 55 gr FMJBT 3120 fps 1000/Box, 5.56X Case
List: $683.99 (Save 12%)
$601.69
$0.60/Round
PMC Ammunition X-Tac Rifle Ammo 5.56 NATO 62 gr Green Tip 1000/ct, 5.56 M855 Case
PMC Ammunition X-Tac Rifle Ammo 5.56 NATO 62 gr Green Tip 1000/ct, 5.56 M855 Case
List: $689.99 (Save 12%)
$608.99
$0.61/Round
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Firearm Case

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Voodoo Tactical 42in Padded Weapons Case w/Die Cut MOLLE
Voodoo Tactical 42in Padded Weapons Case w/Die Cut MOLLE
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$115.99
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On Sale
Voodoo Tactical OPMOD Double Rifle Weapons Case, 42 in, 42 in, Coyote/Black, OP-7619061000
Voodoo Tactical OPMOD Double Rifle Weapons Case, 42 in, 42 in, Coyote/Black, OP-7619061000
(7)
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$119.99
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Savior Equipment Ultimate Guitar Single Rifle Case
Savior Equipment Ultimate Guitar Single Rifle Case
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$199.97
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Eberlestock Sniper Sled Drag Bag Gun Case
Eberlestock Sniper Sled Drag Bag Gun Case
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List: $380.00 (Save Up to $11.00)
$369.00
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Best Rated
Pelican Vault V730 Tactical Rifle Case wl/wf, 47.1in
Pelican Vault V730 Tactical Rifle Case wl/wf, 47.1in
(18)
List: $261.20 (Save 20%)
$209.95
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MTM Tactical 39in Rifle Crate, Dark Earth, TRC39
MTM Tactical 39in Rifle Crate, Dark Earth, TRC39
(5)
List: $119.40 (Save 18%)
$97.49
Free 2 Day Shipping
Armageddon Gear Precision Rifle Case
Armageddon Gear Precision Rifle Case
(10)
As Low As (Save Up to $4.36)
$261.01
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Ulfhednar Gun Case w/backpack straps 140 cm, NSN N, UH040
Ulfhednar Gun Case w/backpack straps 140 cm, NSN N, UH040
(2)
$498.00
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Pelican VAULT V800 Double Rifle Case, 56.11in
Pelican VAULT V800 Double Rifle Case, 56.11in
(30)
List: $282.00 (Save Up to 21%)
$229.95
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Ulfhednar Gun Case w/Backpack Straps
Ulfhednar Gun Case w/Backpack Straps
(4)
As Low As (Save Up to $35.20)
$398.00
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Nanuk 990 Hard Gun Case w/ Foam Insert for AR, 47.1in
Nanuk 990 Hard Gun Case w/ Foam Insert for AR, 47.1in
(3)
List: $489.99 (Save $30.04)
$459.95
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Best Rated
Pelican VAULT V700 Case, Takedown Firearms, 39.61in, Black, VCV700-0000-BLK
Pelican VAULT V700 Case, Takedown Firearms, 39.61in, Black, VCV700-0000-BLK
(12)
List: $221.00 (Save 23%)
$169.95
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Savior Equipment Urban Warfare Double Rifle Case
Savior Equipment Urban Warfare Double Rifle Case
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Ulfhednar Gun Case/Shooting Mat Combo, Cordura Material, UH041
Ulfhednar Gun Case/Shooting Mat Combo, Cordura Material, UH041
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Nanuk 985 Hard Gun Case w/Foam AR, 39.7in
Nanuk 985 Hard Gun Case w/Foam AR, 39.7in
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Savior Equipment Specialist Covert Single Rifle Case
Savior Equipment Specialist Covert Single Rifle Case
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Boyt Harness H48SG Single Long Gun Case, 48in, Black, 40139
Boyt Harness H48SG Single Long Gun Case, 48in, Black, 40139
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Eylar Extra Large 53in Waterproof Roller Hard Rifle Case w/Foam
Eylar Extra Large 53in Waterproof Roller Hard Rifle Case w/Foam
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Evolution Outdoor Rawhide Series Waxed Canvas Rifle Case, 48in, 44347-EV
Evolution Outdoor Rawhide Series Waxed Canvas Rifle Case, 48in, 44347-EV
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Evolution Outdoor President Series Case
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Pelican Storm Cases iM3300 Long Hard Gun Case, 53.8in
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Vertx VTAC Rifle Scabbard, It's Black, One Size, F1 VTX5708 IBK NA
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Boyt Harness Rifle Case
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Pelican Storm Cases iM3100 Long Hard Gun Case, 39.8in
Pelican Storm Cases iM3100 Long Hard Gun Case, 39.8in
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Boyt Harness H41XD Tactical Rifle/Carbine Case, 41in, Black, 40149
Boyt Harness H41XD Tactical Rifle/Carbine Case, 41in, Black, 40149
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Evolution Outdoor 42in EVA Tactical Double Rifle Case, Black, 51290-EV
Evolution Outdoor 42in EVA Tactical Double Rifle Case, Black, 51290-EV
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Eylar Standard 44in Waterproof Roller Hard Rifle Case w/Foam
Eylar Standard 44in Waterproof Roller Hard Rifle Case w/Foam
(8)
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Elite Survival Systems Assault Systems Submachine Gun Cases
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Plano Element Gun Eqpmnt Case 44 in Double Tact Gun w/Gray Accent, Black, PLAM9440
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Pelican Storm Cases IM3410 Long Storm Case, 54.74in
Pelican Storm Cases IM3410 Long Storm Case, 54.74in
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Boyt Harness Double Gun Case, OD Green, 52in, 0GC21DG09
Boyt Harness Double Gun Case, OD Green, 52in, 0GC21DG09
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Pelican V800, Vault Double Rifle Case, With Foam, Olive Drab Green, 56.11"x 19.15"x 6.65" VCV800-0000-ODG
Pelican V800, Vault Double Rifle Case, With Foam, Olive Drab Green, 56.11"x 19.15"x 6.65" VCV800-0000-ODG
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Bulldog Cases & Vaults Ultra Compact AR-15 29in Discreet Carry Case, Black BD476
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Boyt Harness H52SG Hard Sided Single Long Gun Case, 52in, Black, 40156
Boyt Harness H52SG Hard Sided Single Long Gun Case, 52in, Black, 40156
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Flambeau 513SN Double Coverage Black Polymer 5 Scoped Rifle Or Shotgun
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Galati Gear 37in XT Premium Rifle Case, Black, 3708XT
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Ammo Boxes

1–6 / 6
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Berrys 29682 405 Ammo Box 223 Rem,5.56x45mm NATO 50rd Smoke Lid W/Black Bottom
Berrys 29682 405 Ammo Box 223 Rem,5.56x45mm NATO 50rd Smoke Lid W/Black Bottom
(1)
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$3.19
Nanuk 908 Ammo Case, 12.5in, Black/White, Small, 908S-000BK-PA0-AMM01
Nanuk 908 Ammo Case, 12.5in, Black/White, Small, 908S-000BK-PA0-AMM01
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$79.95
Berrys 44661 405 Ammo Box 223 Rem,5.56x45mm NATO 50rd Blue Lid W/Black Bottom
Berrys 44661 405 Ammo Box 223 Rem,5.56x45mm NATO 50rd Blue Lid W/Black Bottom
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$3.19
MTM Ammo Rack w 4 RS-50-24 Ammo boxes, Dark Earth/Clear Blue, ARRS
MTM Ammo Rack w 4 RS-50-24 Ammo boxes, Dark Earth/Clear Blue, ARRS
(2)
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$34.79
Berrys 11664 005 Ammo Box 223 Rem,5.56x45mm NATO 100rd Smoke Lid W/Black Bottom
Berrys 11664 005 Ammo Box 223 Rem,5.56x45mm NATO 100rd Smoke Lid W/Black Bottom
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$5.49
Berrys 86410 005 Ammo Box 223 Rem,5.56x45mm NATO 100rd Blue Lid W/Black Bottom
Berrys 86410 005 Ammo Box 223 Rem,5.56x45mm NATO 100rd Blue Lid W/Black Bottom
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SIG SAUER M400-SDI X Rifle, 5.56x45mm NATO, 16 inch Barrel Unavailable & Discontinued Models

List of Unorderable Models

  • SIG SAUER M400-SDI X Rifle, 5.56x45mm NATO, 16 inch Barrel, 30 Round Magazine, Black, RM400SDI16BFDE-FRRMPG , MPN: RM400SDI16BFDE-FRRMPG , Code: SD9-FR1-RFL914-RM400SDI16BFDE-FRRMPG
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