EXTERNAL UPGRADE
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Noveske N4 metal body
Model#: M4 Receiver Noveske N4 -
Stag Arms Stag-6.8 metal body
Model#: M4 Receiver Stag 6.8 -
Barrett Rifles REC7 6.8 metal body
Model#: M4 Receiver Barrett REC7 -
Daniel Defense DDM4 metal body
Model#: M4 Receiver DDM4
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JP Rifles M4 metal body
Model#: M4 Receiver JP Rifles -
PWS M4 metal body
Model#: M4 Receiver PWS M4 -
Gemtech M4 metal body
Model#: M4 Receiver Gemtech M4 -
Double Star M4 metal body
Model#: M4 Receiver Double Star
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Daniel Defense Low Profile Gas Block
Model#: DD-GB -
Noveske Rifleworks Gas Block
Model#: NV-GB-ND -
Noveske Rifleworks Adjustable Gas Block
Model#: NV-GB -
Whisper 1911 .45 ACP Compact Short Suppressor
Model#: MB-BE-WHISPER01