Shipping was quick and fast. Part is absolutely immaculate.
Delivery: 5
Design: 5
Quality: 5
Value for money: 5
Sold by HK PARTS
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Product details
H&K HK MR556A1 and A4 Complete Bolt Group
Complete semi-auto bolt carrier group for MR556A1/A4 receivers. Bolt carriers will be marked ".223 Rem" or "5.56 x 45".
Includes The Following:
MR556 Bolt Carrier
Complete bolt head
Firing pin spring
Firing pin
Cam pin
All misc parts that comprise a complete bolt group
Compatible With:
HK MR556A1
HK MR556A4
HK CR556
All reviews
Product is as described on pictures it is worth the money.
Delivery: 5
Design: 5
Quality: 5
Value for money: 5