Often with rifles in production a lot of years, they will use a few different types of guards.  Generally beginning with steel, then later switching to plastic to reduce costs.  I have changed a couple of my old twentytwo rifles to the older stamped steel guards, replacing the plastic. No worries on breakage!  These rifles don't generally have a lot of 'collector value', so changing parts isn't a big issue.
		 
		
		
		
		
		
		
		
		
	
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