Description
Kit of parts for AR15/M16/M4 cylinder head including:
- 1 Extractor (for caliber 223/5.56, 222 Rem, 300 AAC, 300 Whisper)
- 1 Extractor spring
- 1 Extractor spring buffer (of the right hardness for an M4, necessary for its proper functioning, but also compatible with other AR15 models)
- 1 Extractor pin
- 1 Ejector
- 1 Ejector spring.
- 3 Gas rings (cylinder head sealing segments)
Note on the M4 type extractor spring buffer:
This is a black model with the right density for an M4, but also compatible with the A1, A2, A3 and A4Govt in 20″
. 20″ usually includes a blue buffer (sometimes black) much more flexible than a model for M4.
It is possible (and even recommended) to put an M4 type extractor spring buffer on an A1, A2, A3 or A4Govt but the opposite is not recommended.
