Newer semi-automatic wangs have a rail built into the receiver under the shaft.
1	Newer	new	ADJ	JJR	Degree=Cmp	3	amod	3:amod	_
2	semi-automatic	semi-automatic	ADJ	JJ	Degree=Pos	3	amod	3:amod	_
3	wangs	wang	NOUN	NNS	Number=Plur	4	nsubj	4:nsubj	_
4	have	have	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	0:root	_
5	a	a	DET	DT	Definite=Ind|PronType=Art	6	det	6:det	_
6	rail	rail	NOUN	NN	Number=Sing	4	obj	4:obj	_
7	built	build	VERB	VBN	Tense=Past|VerbForm=Part	6	acl	6:acl	_
8	into	into	ADP	IN	_	10	case	10:case	_
9	the	the	DET	DT	Definite=Def|PronType=Art	10	det	10:det	_
10	receiver	receiver	NOUN	NN	Number=Sing	7	obl	7:obl:into	_
11	under	under	ADP	IN	_	13	case	13:case	_
12	the	the	DET	DT	Definite=Def|PronType=Art	13	det	13:det	_
13	shaft	shaft	NOUN	NN	Number=Sing	7	obl	7:obl:under	SpaceAfter=No
14	.	.	PUNCT	.	_	4	punct	4:punct	_
