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MR556A1

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Schematic ID# 1137

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#1
COMPENSATOR, HK416
760-000-529WB
Flash Hider 22 Cal 1/2-28 Steel Black

Mfr Part: 233106

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FITS: MR556A1, 5.56

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#2
BLOCK, GAS, HK416/MR556
760-001-478WB
Block, Gas, HK416/Mr556

Mfr Part: 50235691

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FITS: MR556A1, 5.56

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#3
PIN, GAS BLOCK, HK416/MR556
760-000-676WB
MR556A1 Gas Pin

Mfr Part: 50979245

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FITS: MR556A1, 5.56

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#4
SOCKET BARREL, HK416/MR556
760-001-641WB
Heckler & Koch MR556A1 Barrel Socket Steel Black

Mfr Part: 50203580

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FITS: MR556A1, 5.56

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#6
50205381 GAS PISTON COMPL
760-001-464WB
MR556A1 Gas Piston

Mfr Part: 50205381

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FITS: MR556A1, 5.56; MR762A1, 7.62

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#7
50203648 PISTON ROD, COMPL., HK416
760-001-499WB
MR556A1 Gas Piston

Mfr Part: 50203648

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FITS: MR556A1, 5.56; MR762A1, 7.62

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#9
PIN, EJECT. PORT COVER HK416/MR556
760-000-989WB
Pin, Eject. Port Cover HK416/Mr556

Mfr Part: 50203633

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FITS: MR556A1, 5.56

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#10
50203626 COVER ASSEMBLY, HK416/MR556
760-000-183WB
Cover Assembly, HK416/Mr556

Mfr Part: 50203626

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FITS: MR556A1, 5.56

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#11
PIN, LOCK BOLT, (1/16X3/16), HK416
760-001-417WB
Pin, Lock Bolt, (1/16X3/16), HK416

Mfr Part: 50979290

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FITS: MR556A1, 5.56

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#13
PIN, FORWARD ASSIST, HK416/MR556
760-001-392WB
Pin, Forward Assist, HK416/Mr556

Mfr Part: 50979313

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FITS: MR556A1, 5.56; MR762A1, 7.62

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#14
50203635 SPRING, PLUNGER, MR.762
760-001-383WB
Spring, Plunger, Mr762

Mfr Part: 50203635

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FITS: MR556A1, 5.56; MR762A1, 7.62

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#15
FORWARD ASSIST ASSY, HK416/MR556
760-001-435WB
Forward Assist Assy, HK416/Mr556

Mfr Part: 50203599

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FITS: MR556A1, 5.56; MR762A1, 7.62

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#20
PIN, DOWEL HK416/MR556
760-001-051WB
Pin, Dowel HK416/Mr556

Mfr Part: 50928077

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FITS: MR556A1, 5.56; MR762A1, 7.62

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#25
CATCH,COMPL., HK416/MR556
760-000-366WB
Catch,Compl., HK416/Mr556

Mfr Part: 50235377

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FITS: MR556A1, 5.56

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#26
PICATINNY GUARD. MR556, COMPL.
760-001-761WB
Picatinny Guard. Mr556, Compl.

Mfr Part: 236204

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FITS: MR556A1, 5.56

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#28
SHAPED SPRING, FFRS, HK416
760-000-936WB
Spring Brass Unfinished

Mfr Part: 50233186

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FITS: MR556A1, 5.56

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#29
EJECTOR, HK416/MR556
760-000-836WB
Ejector, HK416/Mr556

Mfr Part: 50233109

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FITS: MR55A1, 5.56

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#31
PIN, EXTRACTOR, HK416/MR556
760-000-833WB
Pin, Extractor, HK416/Mr556

Mfr Part: 50203569

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FITS: MR556A1, 5.56

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#32
BOLT GROUP MR COMPL.
760-001-721WB
Bolt Group Mr Compl.

Mfr Part: 50236268

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FITS: MR556A1, 5.56

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#33
BUFFER, EXTRACTOR SPRING,HK416/MR5
760-000-027WB
Buffer, Extractor Spring,HK416/Mr5

Mfr Part: 50207779

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FITS: MR556A1, 5.56; MR762A1, 7.62

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#34
SPRING, EXTRACTOR, G36,HK416/MR556
760-001-425WB
Spring, Extractor, G36,HK416/Mr556

Mfr Part: 50205407

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No longer deliverable by the Factory

FITS: MR556A1, 5.56; MR762A1, 7.62

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#36
PIN, SPRING, MR556/HK416
760-001-177WB
Pin, Spring, Mr556/HK416

Mfr Part: 50236320

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FITS: MR556A1, 5.56

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#37
50233112 PIN, CAM, HK416
760-000-393WB
Pin, Cam, HK416

Mfr Part: 50233112

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FITS: MR556A1, 5.56

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#38
SPRING, BOLT CATCH, HK416
760-001-397WB
Spring, Bolt Catch, HK416

Mfr Part: 50233132

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FITS: MR556A1, 5.56; MR762A1, 7.62

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#42
SPRING MAGAZINE CATCH, HK417/MR556
760-001-334WB
Spring Magazine Catch, HK417/Mr556

Mfr Part: 50235022

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FITS: MR556A1, 5.56; MR762A1, 7.62

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#43
PIN LOOK INDEX , HK417/MR556
760-000-849WB
Pin Look Index , HK417/Mr556

Mfr Part: 50235238

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FITS: MR556A1, 5.56; MR762A1, 7.62

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#44
PIN TRIGGER/HAMMER, HK417/MR556
760-000-857WB
Pin Trigger/Hammer, HK417/Mr556

Mfr Part: 50235239

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FITS: MR556A1, 5.56

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#45
BLOCK ASSEMBLY COMPL., MR556/HK416
760-001-793WB
Block Assembly Compl., Mr556/HK416

Mfr Part: 235604

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FITS: MR556A1, 5.56

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#46
SPRING, FIRING PIN, HK416
760-001-195WB
Spring, Firing Pin, HK416

Mfr Part: 50233674

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FITS: MR556A1, 5.56; MR762A1, 7.62

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FIRING PIN, HK416
760-000-093WB
Firing Pin, HK416

Mfr Part: 50233703

HECKLER & KOCH

Discontinued by Shop Brownells

Product has been discontinued and no longer available.

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#48
50203570 BUFFER, COMPL., HK416
760-000-091WB
Buffer, Compl., HK416

Mfr Part: 50203570

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FITS: MR556A1, 5.56

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#49
50233166 BUFFER SPRING, HK416
760-000-515WB
Buffer Spring, HK416

Mfr Part: 50233166

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FITS: MR556A1, 5.56

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#50
PIN, DETENT TAKEDOWN, HK416/MR
760-000-736WB
Pin, Detent Takedown, HK416/Mr

Mfr Part: 50233115

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FITS: MR556A1, 5.56; MR762A1, 7.62

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#51
SPRING, TAKEDOWN PIN, HK418 50233116
760-001-143WB
Spring, Takedown Pin, HK416

Mfr Part: 50233116

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FITS: MR556A1, 5.56; MR762A1, 7.62

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#54
AXLE ,HK416/417/MR
760-000-598WB
Axle ,HK416/417/Mr

Mfr Part: 50227886

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FITS: MR556A1, 5.56; MR762A1, 7.62

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#55
DISCONNECTOR,HK416/417/MR
760-000-355WB
Disconnector,HK416/417/Mr

Mfr Part: 227695

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FITS: MR556A1, 5.56; MR762A1, 7.62

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#56
SPRING, DISCONNECTOR, HK416
760-001-402WB
Spring, Disconnector, HK416

Mfr Part: 50233149

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FITS: MR556A1, 5.56; MR762A1, 7.62

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#58
SPRING, DISCONNECTOR, HK416/MR
760-001-085WB
Spring, Disconnector, HK416/Mr

Mfr Part: 50235000

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FITS: MR556A1, 5.56; MR762A1, 7.62

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#59
BRIDGE, MR/HK417
760-000-418WB
Bridge, Mr/HK417

Mfr Part: 50203593

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FITS: MR556A1, 5.56; MR762A1, 7.62

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#62
50979292 PIN, BOLT CATCH, HK416
760-001-412WB
Pin, Bolt Catch, HK416

Mfr Part: 50979292

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FITS: MR556A1, 5.56; MR762A1, 7.62

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#38
SPRING, BOLT CATCH, HK416
760-001-397WB
Spring, Bolt Catch, HK416

Mfr Part: 50233132

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FITS: MR556A1, 5.56; MR762A1, 7.62

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PLUNGER BOLT CATCH, HK416
760-000-987WB
Plunger Bolt Catch, HK416

Mfr Part: 50233131

HECKLER & KOCH

Discontinued by Shop Brownells

Product has been discontinued and no longer available.

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#65
MAG., CATCH PLATE,HK416/MR (0LD 23
760-000-475WB
Mag., Catch Plate,HK416/Mr (0Ld 23

Mfr Part: 50227611

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FITS: MR556A1, 5.56

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#66
SPRING, MAGAZINE CATCH, HK416/MR
760-001-186WB
Spring, Magazine Catch, HK416/Mr

Mfr Part: 50233126

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FITS: MR556A1, 5.56

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#67
BUTTON, MAGAZINE RELEASE,HK416/MR
760-000-493WB
Button, Magazine Release,HK416/Mr

Mfr Part: 50233127

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FITS: MR556A1, 5.56

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#68
CLAMPING SLEEVE, HK416
760-001-419WB
Clamping Sleeve, HK416

Mfr Part: 50984199

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FITS: MR556A1, 5.56; MR762A1, 7.62

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#69
SELECTOR LEVER, AUTO, HK416
760-000-587WB
Selector Lever, Auto, HK416

Mfr Part: 50227870

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FITS: MR556A1, 5.56; MR762A1, 7.62

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#70
SAFETY AXLE, SEMI-S, HK416
760-000-562WB
Safety Axle, Semi-S, HK416

Mfr Part: 50236274

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FITS:MR556A1, 5.56; MR762A1, 7.62

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#71
SPRING, BUFFER RETAINER, HK416/MR
760-001-401WB
Spring, Buffer Retainer, HK416/Mr

Mfr Part: 50233121

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FITS: MR556A1, 5.56; MR762A1, 7.62

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#72
50233120 RETAINER, BUFFER, HK416/MR
760-000-626WB
Retainer, Buffer, HK416/Mr

Mfr Part: 50233120

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FITS: MR556A1, 5.56; MR762A1, 7.62

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#73
PIN, BUFFER RETAINER, HK416
760-001-259WB
Pin, Buffer Retainer, HK416

Mfr Part: 50986544

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FITS: MR556A1, 5.56; MR762A1, 7.62

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#74
50233153 TRIGGER GUARD ASSY, HK416
760-000-249WB
Trigger Guard Assy, HK416

Mfr Part: 50233153

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FITS: MR556A1, 5.56; MR762A1, 7.62

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#76
50236687 DETENT, FIRE CONTROL S, HK416
760-001-001WB
236687 Detent, Fire Control S, HK416/M

Mfr Part: 50236687

HECKLER & KOCH

No longer deliverable by the Factory

FITS: MR556A1, 5.56

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#77
SPRING, SELECTOR DETENT, HK416
760-001-398WB
Spring, Selector Detent, HK416

Mfr Part: 50233136

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FITS: MR556A1, 5.56; MR762A1, 7.62

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#78
GRIP, COMPL., HK417/HK416
760-000-094WB
Pistol Grip Polymer Black

Mfr Part: 50234671

HECKLER & KOCH

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FITS: MR556A1, 5.56; MR762A1, 7.62

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#79
COVER, CPL., HK416
760-000-413WB
Heckler & Koch MR556A1 Grip Cover Black Polymer

Mfr Part: 50234668

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FITS: MR556A1, 5.56; MR762A1, 7.62

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#50
PIN, DETENT TAKEDOWN, HK416/MR
760-000-736WB
Pin, Detent Takedown, HK416/Mr

Mfr Part: 50233115

HECKLER & KOCH

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FITS: MR556A1, 5.56; MR762A1, 7.62

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#51
SPRING, TAKEDOWN PIN, HK418 50233116
760-001-143WB
Spring, Takedown Pin, HK416

Mfr Part: 50233116

HECKLER & KOCH

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FITS: MR556A1, 5.56; MR762A1, 7.62

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#86
50233165 RECEIVER EXTENSION NUT HK416
760-000-337WB
Nut, Receiver Extension, HK416

Mfr Part: 50233165

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FITS: MR556A1, 5.56

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#87
EXTENSION RECEIVER COMPL. MR556
760-001-804WB
Extension Receiver Compl Mil-Spec MR 556

Mfr Part: 50236272

HECKLER & KOCH

No longer deliverable by the Factory

FITS: MR556A1, 5.56

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#97
BUTTSTOCK CAP, CONCAVE, HK416/417
760-000-254WB
MR556A1 Butt Plate Black Polymer

Mfr Part: 227616

HECKLER & KOCH

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FITS: MR556A1, 5.56; MR762A1, 7.62

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Schematics are the property of, and trademarks are registered to, the individual manufacturers, and are used with permission. Process Patented USPTO# 7,437,319. US Patent No. 8,775,266. Additional Patents Pending.