NiB finish wipes clean with a rag, no carbon stick. roll pin install was the only fiddly part, hold the spring and detent with one hand while you drive the pin. five min job once you have the order down



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WMD Guns
Overview
The WMD NiB-X Forward Assist Assembly is a complete assembly designed to ensure reliable manual chambering in your AR-15 platform. Finished with a Nickel Boron coating, it provides enhanced corrosion resistance and smoother operation, which can improve the overall reliability of your build. This forward assist is commonly found in mid-length gas system builds chambered in 5.56 NATO, making it a practical choice for those setups.
Based on build data

Wilson Combat Ar-15 Lo-Profile Gas Block .750" Black
Gas Block
Tacfire Ar-15 Mil-Spec Buffer Tube Kit
Buffer Assembly
Strike Industries Tribus Enhanced Ar-15 Castle Nut and End Plate - Black
End Plate
Juggernaut Tactical California Compliant Ar-15 Rear Detent Kit - Black
Takedown Pin
Wmd Guns Ar-15 Gas Tube Nitromet Mid-Length
Gas Tube
Tacfire Short Buffer Tube System for AR-Style Pistols - Black, Compact Comfort - MAR139-C
Buffer AssemblyAggregated and anonymized data showing how builders use this product
| Product | Category | Times Built Together |
|---|---|---|
| Wilson Combat Ar-15 Lo-Profile Gas Block .750" Black | Gas Block | 5 |
| Tacfire Ar-15 Mil-Spec Buffer Tube Kit | Buffer Assembly | 4 |
| Strike Industries Tribus Enhanced Ar-15 Castle Nut and End Plate - Black | End Plate | 4 |
| Juggernaut Tactical California Compliant Ar-15 Rear Detent Kit - Black | Takedown Pin | 4 |
| Wmd Guns Ar-15 Gas Tube Nitromet Mid-Length | Gas Tube | 4 |
| Tacfire Short Buffer Tube System for AR-Style Pistols - Black, Compact Comfort - MAR139-C | Buffer Assembly | 4 |
| Platform | Percentage |
|---|---|
| AR-15 | 92.9% |
| AR-10 | 7.1% |
| Caliber | Percentage |
|---|---|
| 5.56 NATO | 80% |
| .223 Wylde | 20% |
| Gas System | Percentage |
|---|---|
| Mid-Length | 57.1% |
| Carbine | 21.4% |
| Rifle | 14.3% |
| Intermediate | 7.1% |
Builds in the community that include the Wmd NiB-X Forward Assist Assembly
| Build | Parts | Total |
|---|---|---|
![]() | 13 | $1192.83 |
![]() | 22 | $1723.66 |
![]() | 27 | $2314.34 |
![]() | 16 | $971.96 |
![]() | 24 | $3380.05 |
![]() | 30 | $3036.47 |
![]() | 15 | $1195.39 |
2 global ratings
NiB finish wipes clean with a rag, no carbon stick. roll pin install was the only fiddly part, hold the spring and detent with one hand while you drive the pin. five min job once you have the order down
nickel boron coating on the assist is slick, looks sharp through the upper window. spring tension is balanced, button engages positive without being mushy. matched this with a NiB BCG for a fully coated upper