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For VFC M4 Series GBB System Use Only. Require to DIY capability
Can NOT compatible with VFC forging M4 series receivers, need to re-modification to fit. Corresponding to other finished products or single upper/lower receiver installations. Due to different batches or tolerances issue, the pin holes of the receiver may be slightly offset and may require minor re-modification.
● Product Brand : VFC (Taiwan)
● VFC Original Parts
● Material : Aluminum Alloy ● Color : Black Features: ● The latest type of VFC M4 series GBB upper (Since 2012) and lower (Since Feb. 2016) receiver sets, with marking.
● Compatible with almost all VFC M4 GBB series inner parts and accessories, and the same type of buffer extension / barrel / handguard thread.
● Comes with a Firing Pin Base (For New Type Lower Receiver).