HK MR556A4 11" Upper Receiver Kit w/Bolt, Buffer Spring, M-LOK, Supp Ready, Adj Gas Regulator, Pic Rail, & Ext Ambi Charging Handle 51000385

HK MR556A4 16.5" Upper Receiver Kit w/Bolt, Buffer Spring, M-LOK, Supp Ready, Adj Gas Regulator, Pic Rail, & Ext Ambi Charging Handle 51000384

HK SP5 3-Position Retractable Buttstock 227901

HK SP5/SP5K Picatinny Rail 50226207

HK SP5 Fixed Buttstock 205586

HK VP9L Optics Ready Slide Kit 51001081

HK VP9 Tactical Threaded Barrel

VP9SK Optic Ready Slide w/Tall Sights & Slide Cover Plate 51000950

HK SP5K Folding Buttstock 261249

HK Mounting Plate #2, VP OR, Trijicon RMR 50254262

HK USP45 Tactical Threaded barrel, 5.09 inches (replaces 217702) MPN 226349

Heckler Koch USP Jet Funnel Assembly Kit 216189

HK MP5/SP5 RAL8000 Retractable Buttstock 50226259

Heckler Koch USP45 Compact Tactical 4.46" Threaded Barrel 226347

Heckler Koch USP Match Trigger Kit 216169R

HK VP9 Accessories Tac Pack w/Soft Case, (3) 17rd Magazines, & $50 HK Webshop Gift Card 51000350

HK VP9OR Green/Green Tritium Night Sights 51000937

HK VP9 Match Optic Ready Slide Kit w/Tall Sights & Slide Cover Plate 51000951

Heckler Koch 45/45C Ambi Kit 241594

HK VP/P30/HK45 Elevated Green/Green Tritium Night Sights 51000935

Heckler Koch USP Full Size Adjustable Night Sights 701101

HK VP9OR Elevated Green/Green Tritium Night Sights 51000939

HK MR556 9" Black M-LOK Handguard 51000223

HK Mounting Plate #4, VP OR, Leupold DeltaPoint 50254264

HK VP9/P30/P30SK Green/Green Tritium Night Sights 51000933

HK MR762 14.7" Black M-LOK Handguard 51000224

HK Handguard Rail SL8/USC/UMP/G36 MPN 702390

HK HK45 .45 ACP 5.11" Tactical Barrel 51000983

HK VP9OR Elevated Pistol Sight Set w/Luminescent Front & Serrated Rear 51000938

Trijicon H&K .45C/P30 / VP9 3-Dot Night Sight Set HK10 600282

HK MR556 12.5" Black M-LOK Handguard 51001100

HK USP Ambi. Control Lever Kit 50217891

HK P30SK/VP9SK mag floorplate, extended 239284

HK Mounting Plate #5, VP OR, Burris Fastfire 2 or 3, Vortex Viper or Venom 50254265

HK VP/P30/HK45 Elevated Pistol Sight Set w/Luminescent Front & Serrated Rear 51000934

HK VP9 Mounting Plate for Holosun 509T 51000792

HK VP9 Mounting Plate for Holosun "K" Series 51000381

HK Mark23 Thread Cap (replaces 702039). MPN 970174

Heckler Koch P2000/SK Night Sight 702071

Heckler Koch USP Compact Night Sight 701973

HK VP/P30/HK45 Pistol Sight Set w/Luminescent Front & Serrated Rear 51000932

HK HK45C .45 ACP 4.57" Tactical Barrel 51000982

HK Mounting Plate #3, VP OR, C-More STS2 50254263

HK VP9OR/P2000 Standard Height Rear Night Sight 51001055

HK Mounting Plate #1, VP OR, Noblex sight III, Meopta MeoSight III, EOTech MRDS 50254261

HK416 11" Handguard 50233617

Heckler Koch LEM Trigger Conversion Kit 260204

HK P30L 9mm Threaded Barrel 229792