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HM Defense
HM Defense HMBAR15 HMB 223 Rem/5.56 NATO Bolt Assembly w/4340 Hardened Steel Cam Pin Fits Drop In Bolt Mil-Spec Carriers, 9310 Steel w/Black Nitride Finish
Product Code : 854164007135
$141.99
Mfg Item #: HMB-AR15
The HMB bolt by HM Defense eliminates the pass through cam pin hole and replaces it with a cam pin socket and tapered cam pin design. This patented design eliminates the natural weak point of Mil-Spec bolts by significantly increasing the amount of metal at the cam pin location. It is 100% compatible with Mil-Spec M16 & AR-15 BCGs and can installed as a drop-in bolt replacement in any existing M16 or AR-15 rifle.
| Size | 223/5.56 NATO |
|---|---|
| Model | HMB |
| Material | 9310 Steel |
| Bolt Type | Drop In |